Lots of folks like to have a separate wallet for all those cards we need to carry around. They also like a smaller-sized wallet. So I designed one, here's my prototype. Each partition holds 10 or so cards. So you can have 40 or more cards in this wallet. I sort my cards into "frequently used," "medical," "gift cards," and "infrequently used" categories. And there's a top window slot, maybe for a driver's licence or bus pass. Now to design the cut files so I can automate the cutting out part.