One of the best all around cleaners in the home is baking soda. And if you need to wet the baking soda, use H2O2 (hydrogen peroxide for you non-science folk). I keep a shaker jar of baking soda and a squeeze bottle of H2O2 under my kitchen sink at all times :) Make a paste with the two to clean darn near anything. It works wonders on making my sink shiny and will remove burn marks from pans.
It is really simple to make a shaker top for your jar. Using a small drill bit and your drill, make holes in a waxed ring lid.