Baking Soda By Aaron, From: Moscow, ID Baking soda is the duct tape of personal hygiene. Use it by adding to soak water in food containers to remove funky odors. Use baking soda on stinky feet, dirty teeth or ripe armpits. Use as a breath freshener or antacid ( 1/2 tsp. 1 C water). Do you have some more uses?