Soft Scrub:

Put a bit of baking soda in a bowl (try 1/8 of a cup for
starters), then just enough liquid detergent so that it's like frosting when
you mix it. Then, cover a sponge with it and use it to wash the surface.
This is really good for washing bathtubs and any tile you might have. It
also works as an oven cleaner, though I would recommend wetting it down a
bit with water first, rubbing a layer of the mixture all over the inside of
the oven, then letting it sit overnight before you scrub it all off.