These bins are wonderful. They can hold all your pages in progress (there are dividers) or they can help you sort your cardstocks and patterned papers. Many other organizers fit inside them, so you can even store paper AND sticker folders in the same container. They hold a lot, so they do get heavy, but they are such a convenient size and have good strong handles, you can carry one on each side if you have them really stuffed. I only scrap with a group, so I have to carry everything with me. I am getting rid of my huge old rolling organizer and switching to these. They are modular, stack well, and you can see what's in there!