I found some plastic totes that you can stack on top of each other and connect using just 1 lid for all of them. When I'm working on a number of projects I tend to keep them in their own tote/container. If I have pieces cut for each block I'll put them in their own little bag to keep them separate from the rest. I'll add an alphabet pin inside so I know what block it goes to. I am the type that makes lots of notes adding an alphabet to each step/block to keep them organized. As I finish a step I'll mark it off so I don't double up on it. Same when I cut my sashings, borders and bindings so I don't cut twice.........which I've done in the past. I'll pin the type of blocks together so they keep organized and less wrinkled too. My projects I haven't started are on a top shelf with their fabrics, pattern and who its for. Sometimes during the year I might add a fabric I think might work well with that particular project, sometimes I'll change patterns altogether if I find one I like much better. But each project has its own particular spot on the shelf so they don't get mixed up.