Mighty Mouse Wheel Stuck

Scanning the Google results for "stuck mighty mouse wheel" show a lot of people who have a similar problem to mine: the pea ball on the might mouse gets dirty, then doesn't work very well anymore. I tried a few of the tricks; turning it upside down and gently tapping the mouse worked for me once; rubbing it on a cloth didn't do any good. The other tricks seemed a little arduous, like using alcohol. This time when I encountered the problem, I took some wadded up facial tissue and gently rubbed the ball. There was a visible improvement overall cleanliness of the ball and lo, it worked fine. I think the tissue was firm enough to get at the dirt, but soft enough that it (at least for me) didn't risk damaging it. So there you are. Seems to work well for me. Hope it works well for you.