If you have managed to make a black burnt mess of your favorite pot or pan, you have probably learned that even using a coarse kitchen scrubber won't make much of a dent in cleaning the bottom. However, there is an inexpensive solution.

Pour one cup of cola into the saucepan or skillet and bring to a boil for two minutes. Repeat if neccessary. You can also allow the pot to soak overnight with a cup of cola as well, although this might not remove the stubbornest stains.