Snapware Cartridge Storage

The containers are Snapware Ribbon Holders MS or JA use coupon if not on sale) about $11
The plastic is cut with is Plastic Canvas (Walmart or MS or JA)$2
cut directions for the canvas

7 strips of 59x10(#of holes)

Cut 5 holes deep at 12, 24, 36, 48

 4 strips of 39x10 (# of holes)

Cut 6 deep @ 5, 10, 15, 20, 25, 30, 35

You should see 59 rows by 10 rows

So cut 60 and 11 and 39 and 10

I made my file dividers for books out of large file cards. I use sharpie to put the Abreviation to top and I file in alphabetical order. I keep books and overlays in alphabetical order but separate by shapes and fonts.
They will snap together so you can keep expanding.