I have those 12x12 plastic scrapbook boxes...and I have a bunch of them labeled..for the most part those 12x12 sticker sheets fit fine..just need to fold over the header. I have 2 boxes with just letters..one with flowers and swirls..one activities...one labeled family....etc. It really helps me. I just don't have the patience to use one of those binders..and slide everything back into place. I am one of those people who just open the boxes and throw it in. ( I know..I'm lazy)...But it works for me.