Plastic zip locks well labeled for the cut pieces. if possible i put all pieces for a block in one zip lock. i reuse them so it isn't so expensive after you get started. then i store all the ziplocks for a project in a plastic container of appropriate size. We will not talk about how many plastic containers I have with UFO's inside. My DH and I do most of the cutting together with him running the cutter. So we tend to cut everything out for a project all at once.