I use ziploc bags for kits or projects that aren't completed yet but intend to get to *some day*. Also make up kits for days when I just have to do something and don't want to take the time to choose fabric from my stash and cut it up. I just bought the ziploc 2 1/2 gallon size. Those are for ufo's and quilts I want to make. I put everything in one bag, fabric, thread, pattern etc.