I'll just throw in a last word about the CM binders---they have 5 different sized sticker/paper/diecut holders available for purchase. One size is for small strips, maybe 2" x 5" and each page has spaces for 16 strips. The plastic is very high quality and has a flap that folds over so your stickers cannot slip out. Then there are the "block" pages- these hold square shaped die cuts, papers or block sized sticker sheets- about 4" x 6" and there are 8 pockets per page (4 on front 4 on back). The Great Length pages hold the long, narrow sticker strips. These are 12" long by about 3-4" wide. These pages have 6 pockets per page. Then there are the pages that hold your sheets of paper (but yes, as the other person posted, 12x12 sheets will NOT fit in these- they are made for up to 10x12 sheets), your ABC sticker sheets, your bigger stickers that are wider than the great length, etc. And finally, there are the "ziploc" pages- I really like these pages- there are two horizontal pockets, about 6" x 10" that you can put scissors in, tape runners, other tools or odd shaped papers/stickers and instead of a flap, it has a heavy duty "ziploc" mechanism down the side. The binder itself costs $25 and comes with one of each of the sticker pages....additional sticker and paper pages are $2 and the ziploc style page is $3. Then the entire binder zips along the side for easy storage and has a sturfy handle for toting to crops, etc.
Before I got hooked on CM, I seriously studied the Crop in Style and even had a rolling tote....but I didn't like the looks of the quality of the plastic in their binders and sticker organizers....it looked like it might rip easily. But that was just my thought and since I didn't buy one, I can't really say from experience. I do REALLY love my CM organizational binder!