I've never worried too much about organizing my stash. I kind of have a system of putting similar sized pieces together and sorting them by color. I also keep all the fabrics I'm collecting for a specific project together in zip locs along with the pattern. I have one drawer for neutral backgrounds. And I'm not real particular about folding as long as they end up approximately the same size and will fit on the shelf. My stash probably isn't as big as some but this seems to work for me. You need to decide what will work best for you.