When you quickly need something to write down. Quite some time ago I saw an image of this idea, which I stupidely did not save, and I cannot find it anymore, so the idea is not mine. But here's how I did it.
Gather some tea bags. I have a stack of 6. The stapler cannot handle too many.
Fold a small part of the top over, and staple the bags together. Ta-dah, now you can use it!