DIY Organizer Tote | How to Make a Planner Storage Case

If you’ve ever found yourself digging through a bag trying to track down your planner, a loose sticky note, three pens, and a washi tape roll that somehow migrated to the bottom of everything, you already know exactly why this project exists. A dedicated planner storage case — one you made yourself, out of fabric you actually love — is a small luxury that makes a big difference in how organized and motivated you feel every single day.

This guide walks you through how to sew a fully functional DIY organizer tote from scratch. Whether you’re a seasoned sewist or someone who just learned how to thread a machine, this is a project that’s manageable, satisfying, and deeply useful. By the end, you’ll have a custom planner pouch and tote bag combo that holds everything your planning system needs: your planner, pens, highlighters, sticky notes, paper clips, washi tape, stickers, and whatever else lives in your creative workspace.

Let’s get into it.

Why Make Your Own Planner Organizer Tote?

Before we dive into cutting and sewing, it’s worth talking about why a handmade tote is worth your time versus just buying something off the shelf.

First, fit. Commercial planner bags are designed around generic planner sizes, and if you use a Hobonichi Techo, a large Happy Planner, a B6 slim, or any other non-standard format, the odds of finding a bag that fits perfectly are low. When you sew your own, you cut to your planner’s exact dimensions.

Second, customization. You choose the fabric, the lining, the number of pockets, the zipper color, the strap length, and every other detail. There is no compromise. You get precisely what you want.

Third, quality. A well-sewn bag made from sturdy canvas or a quilting cotton with interfacing will outlast a lot of mass-produced options that use flimsy zippers and thin fabric that frays at the seams after a year.

And finally — it’s just fun. There’s something deeply satisfying about pulling out an organizer that you made with your own hands. It turns an everyday routine like journaling or planning into something that feels a little more personal and intentional.

Supplies and Materials You’ll Need

Gathering your materials before you start will make the whole process smoother. Here’s what to have on hand.

For the outer fabric, you’ll want something with body — a canvas, a sturdy cotton twill, a laminated cotton, or even a pre-quilted fabric works beautifully. You’ll need about half a yard, though buying three-quarters of a yard gives you wiggle room.

For the lining, a quilting cotton in a coordinating print or solid is ideal. Again, half a yard is usually enough, but grab a little extra to be safe.

You’ll also need fusible interfacing. A medium-weight woven fusible interfacing will add structure to your outer panels. If you want a more structured tote, use a firm stabilizer like Pellon 809 Décor Bond on the outer fabric.

In terms of hardware and notions, you’ll want one 12-inch zipper for the main opening (a YKK zipper is worth the extra cents), a 7-inch or 9-inch zipper for a front pouch pocket, two D-rings or rectangle rings for attaching a removable strap, an adjustable webbing strap or you can cut and sew your own from a long strip of canvas, coordinating thread, and sewing pins or wonder clips.

For tools, a rotary cutter and cutting mat will make your life easier, but scissors work too. You’ll want a quilting ruler, an iron and ironing board (non-negotiable — pressing every seam is what separates a polished result from a wonky one), a zipper foot for your sewing machine, and a fabric marker or chalk pencil.

Optionally, a few pieces of stabilizing foam or batting between the lining and outer fabric will give the tote a padded, structured feel that protects your planner from bumps.

Choosing Your Planner Size and Scaling the Pattern

This is the step most tutorials skip, but it matters more than almost anything else.

Measure your planner. Write down the height, width, and depth (how thick it is when closed). Add about an inch to the height and half an inch to the width for ease — you want the planner to slide in and out comfortably, not squeeze in. The depth of the tote will be determined by how much you plan to store inside.

For a standard A5 planner, a bag that’s approximately 9 inches tall, 7.5 inches wide, and 3 inches deep works well. For a classic Happy Planner, you might size up to 12 inches tall and 9 inches wide.

Once you have your finished dimensions, add seam allowances. A half-inch seam allowance throughout is standard and easy to work with.

Cutting Your Fabric

With your measurements in hand, cut the following pieces.

For the outer tote body, you’ll cut two rectangles. If your finished bag will be 9 inches tall and 7.5 inches wide, cut two pieces at 10 inches by 8.5 inches (adding one inch total to each dimension for seam allowances on both sides).

For the lining, cut two matching rectangles in the same dimensions.

For the gusset (the strip that forms the sides and bottom of the bag), measure the total perimeter of one main panel minus the top edge, then add seam allowances. Cut one strip from the outer fabric and one from the lining to match this measurement. Your gusset width should equal your desired bag depth plus seam allowances — so for a 3-inch deep bag, cut the gusset 4 inches wide.

For the exterior zipper pocket panel, cut two rectangles slightly smaller than the front panel. These will frame your exterior zipper.

For interior pockets, cut as many rectangles as you want pockets. A wide flat pocket works well for notebooks or a planner cover, while narrow vertical pockets are perfect for pens, scissors, or a phone.

Cut all your interfacing pieces to match the outer fabric pieces and fuse them according to the manufacturer’s instructions. Press well with steam.

Building the Exterior Zip Pocket

The exterior zip pocket is one of the most useful features of this tote, so let’s do it first.

Take your two zip pocket rectangles and place them right sides together with the zipper sandwiched face-down between them, aligned along one long edge. Sew across using your zipper foot, keeping close to the zipper teeth. Flip the fabric pieces to either side of the zipper, press, and topstitch close to the zipper on both sides for a clean finish.

Repeat this process on the other side of the zipper with the remaining edges of both rectangles. Now you have a zippered pouch that will sit flush against the front of your tote.

Place this assembled pocket onto the front outer panel, right sides facing out. Baste around the sides and bottom to hold it in place. When the bag is assembled, these basted edges will be caught in the seams and everything will be secure.

Sewing Interior Pockets

Interior pockets are where this bag really earns its keep as a planner organizer. Take a moment to think about what you carry and plan your pockets accordingly.

For a basic patch pocket, cut your rectangle, fold the top edge down by half an inch and press, fold it down again by another half inch and stitch across to create a clean hem. Then press the remaining three sides in by half an inch. Place the pocket on your lining panel, pin it in place, and stitch around the three pressed edges. Backstitch at the top corners to reinforce.

You can divide a wide pocket into smaller slots by sewing vertical lines of stitching through the pocket from top to bottom. Mark your divisions with a fabric marker before stitching so everything lines up neatly.

For a pen loop strip, cut a long narrow strip of fabric, fold it into thirds lengthwise, press, and topstitch along both long edges. Cut this strip into segments and fold each segment into a loop sized for a pen or marker. Baste the loops to the lining panel before attaching pockets, and they’ll be secured when the pocket is stitched on.

Sew all your interior pockets onto the lining panels before you assemble the bag. It’s much easier to work flat at this stage than to try to wrangle pockets inside a finished bag.

Attaching the D-Rings for the Strap

This step is quick but important. Cut two small rectangles of your outer fabric (about 2 inches by 4 inches). Fold each one in half lengthwise, press, fold in half again, and press once more so you have a sturdy multi-layered tab. Thread a D-ring onto each tab and fold the tab in half so the D-ring sits at the fold.

These tabs will be inserted into the top side seams of the bag as you assemble it, so set them aside for now.

Assembling the Outer Bag

Now for the main event. You’ll sew the outer shell of the tote by attaching the gusset strip to one main panel and then to the other.

Pin the outer gusset strip to the outer front panel, right sides together, starting at the top of one side edge. Clip curves if your gusset rounds any corners, snipping small notches into the seam allowance to allow the fabric to ease around the curve without puckering. Sew around the three edges, pivoting at the bottom corners.

Repeat this to attach the back panel to the other long edge of the gusset strip.

Trim your seam allowances and clip corners. Press the seams open where you can — it reduces bulk and gives the bag a cleaner silhouette.

Creating the Zippered Top Opening

The top of the bag uses a zipper to keep everything secure. This is probably the most technical step, but if you take it slowly, the result is clean and professional.

Cut two fabric strips the same width as your main panels and about 2 inches tall to act as zipper tabs. Attach one to each end of your 12-inch zipper to extend it to the full width of the bag opening.

Fold each strip in half and press. Place the zipper face-down along the top edge of the outer bag, aligning raw edges. Place one of your lining panels on top, sandwiching the zipper. Sew along the top edge with your zipper foot.

Flip the lining and outer fabric away from each other so the zipper is exposed between them. Press, then topstitch close to the zipper.

Repeat on the other side of the zipper with the remaining outer panel and lining panel.

Assembling and Closing the Lining

Once both sides of the zipper are attached, you’ll have a flat piece with an outer shell on one side and lining panels on the other. Now you’ll sew the lining gusset to complete the interior.

Repeat the gusset assembly process on the lining side, pinning the lining gusset strip to the lining panels and sewing around the three edges on each side. Leave a gap of about 4 to 5 inches along the bottom of the lining gusset — this is your turning gap. Don’t skip this or you’ll have no way to turn the bag right side out.

Before you sew the final seams, tuck the D-ring tabs into the top corners of the outer bag between the outer fabric and lining, raw edges aligned with the top edge. Make sure the D-ring hangs toward the inside of the bag so it’ll flip out correctly when turned.

Sew across the top corners to secure the tabs.

Turning and Finishing

Reach through the turning gap in the lining and pull the entire bag through. It’ll feel chaotic for a moment, then everything will snap into place and you’ll have a bag that looks like a bag.

Push the lining down inside the outer shell. Press everything thoroughly — this is the step that makes your project look handmade in the best possible way. A well-pressed seam is the difference between “did you make that?” and “where did you buy that?”

Slipstitch the turning gap in the lining closed by hand, or machine-stitch close to the edge for speed.

Topstitch around the zipper opening if you haven’t already, catching both the outer fabric and lining to keep everything flat and stable.

Attach your adjustable strap to the D-rings, and you’re done.

Customizing Your Tote

Here’s where the real fun begins. There are so many ways to make this project your own.

Adding a wrist loop made from a folded ribbon or leather strip gives you a quick grab option when you don’t want to use the full strap. Sewing a small flat zip pouch to the back exterior of the tote gives you a second layer of quick-access storage.

Embroider your initials or a small motif on the front panel before you assemble the bag. This works especially well with a linen or canvas exterior — a simple floral or geometric design adds so much character.

If you want a more structured tote, cut pieces of flexible foam stabilizer to fit inside the panels before you close everything up, sandwich them between the outer fabric and lining gusset. The result is a bag that stands upright on its own and provides cushioning for your planner.

Laminated cotton on the exterior makes the bag water-resistant, which is great if you carry it in a backpack or a larger tote where it might get bumped around. Just remember that laminated fabric doesn’t take pins well — use wonder clips instead and sew slowly.

Tips for Getting the Best Results

Press every seam as you go. This single habit will improve the quality of your sewing more than almost anything else. A well-pressed seam lies flat, looks clean, and is easier to work with in subsequent steps.

Use the right needle for your fabric. A size 90/14 universal needle handles most quilting cottons and canvas. If you’re sewing through multiple layers of canvas plus interfacing, bump up to a 100/16 to avoid skipped stitches.

Slow down at corners. When pivoting around a corner, leave your needle in the down position, lift your presser foot, rotate the fabric, lower the foot, and continue. Rushing corners is how you end up with puckered or crooked turns.

Test your zipper installation on a scrap piece before you sew it onto your actual bag. Zippers are one of those things that feel awkward the first time and completely natural the second time.

Don’t underestimate the turning gap. Too small and you’ll struggle to turn the bag. Four to five inches gives you enough room to work without leaving an awkwardly long gap to close.

Caring for Your Handmade Bag

Most quilting cotton and canvas bags can be spot-cleaned with a damp cloth for everyday mess. For a more thorough cleaning, hand washing in cool water with a gentle detergent and air drying flat will keep the bag in great shape without stressing the seams or zipper.

If you used interfacing, avoid high heat in the dryer, as it can sometimes cause the interfacing to separate from the fabric over time. Air drying is always the safest option.

Final Thoughts

A handmade planner organizer tote is one of those projects that pays you back every time you use it. It takes a few hours to make, and then it becomes a part of your daily routine — something you reach for every morning when you sit down to plan your day, something you tuck under your arm when you head to a coffee shop to work, something that makes your whole planning system feel a little more curated and intentional.

If you’re just getting started with sewing, this project will teach you zipper insertion, pocket construction, lining techniques, and structural assembly — skills that open the door to dozens of other projects. If you’re an experienced sewist, it’s a satisfying weekend make that results in something genuinely useful.

Either way, there’s a bag waiting to be made. Cut your fabric, thread your machine, and get sewing.