Clean teeth

Run out of toothpaste? Use baking soda, baking soda and hydrogen peroxide, baking soda and salt, or plain hand soap - it doesn't taste as bad as you think, and it will clean your teeth.

Saving soap

Every time you put a bar of wet soap on a dish that drains away the water, you drain away soap, too. Put it in a dish with a solid bottom and when the bar is finished, use the "sludge" in the bottom of the soap dish. It's soap and you paid for it.