I'll jump in here and say that while a paper-towel works, twisting up a piece of copy-paper works even better. I used to use the paper-towel method, but noticed that no matter whether I was using budget or Cadillac paper-towels, little bits of fluff would be deposited around my bowl. With the copy-paper, not so much, and it sluffs off the gummy crap a little bit better IMHO.