I started saving the cardboard that comes on Wal Mart's one yard cut. It was such sturdy cardboard and I didn't know exactly what do with it. Then one day, it came to me. So now i used them as a "binding spool" . I store them lengthwise in a plastic tray. When I machine sew on the binding, I keep the "spool" the left and only unroll a foot or so or as I need it. I find keeping the spool to the left that it doesn't twist as much. This has really worked out for me. Maybe you too.