Many of us use the reusable sanding discs when polishing. The problem is the adhesive on the back tends to stick to everything, making them hard to reuse.
A while ago a lady came in with her sanding discs to ask some questions, and I noticed that she put them on wax paper so they pealed off easily. Then she put them in a zip lock bag. I said to myself "Self, why didn't you think of that?"
Sometimes it is just simple ideas that make our work so much easier. She was glad to share her idea with everyone.