I use these very sturdy files to store my monthly SB kits and my projects in progress. When I gather supplies for an album, I keep all the papers & scraps, embellishments and notes in one of these. Label them with a round metal edge tag (punch a small hole through the top edge) & stand them up on a bookshelf. They are great to take to crops - gather all the supplies for a layout and take them in one of these folders.
I use this file for paper storage, full sheets in the inside pocket and scraps in the outside pockets. It has one outside pocket on the front, and two outside pockets on the back, all of them are 12" across. It will hold just as much paper as the paper file, which advertises a capacity of 40 sheets.