I cut off a small corner of each piece and staple it to an index card. On the card I list the length of material, cost, date purchased and where purchased. This way I can use the swatches to match up with and know if I have enough material for my project. Then I go digging in the closet where the material is stacked on open front shelves. This works pretty well most of the time......until I get behind on my cateloging.