I use the Cropper Hopper sticker envelopes. They come 3 to a pack for about $6. There are 2 large pockets, a medium pocket and a small pocket per envelope. The largest pocket holds 12 x 12 paper too. I have my Disney stuff sorted by character...paper & stickers in one thing. Then the envelopes are stored in Princess Nancy's converted priority mail boxes, but they are supposed to fit in the Cropper Hopper verticle storage system.
Here is a pic http://www.cropperhopper.com/ProductImages/CNSE.jpg
Mine are sorted by category in page protectors in binders! I have 5 small binders each with a different category. It works fine for me. At least for now.
How are you able to keep the stickers in there without them fall around each other. I have a bunch of page prot for a book i don't use(3ring) so this would be a great idea for me!![]()