So far I have used 2 index cards to create cactus on, and I need a storage system. I am thinking of buying one of those small plastic flexible photo books that holds 3x5 photos. I slip all my ATC's (which are smaller (2.5x3.5) into baseball card sleeve pages in a notebook. I really want to save my index card "art" as well. Anyone have any better ideas? Or have I come up with the perfect solution???