Use Baking Soda as an Exfoliator - Here’s a super cheap way to get an easy exfoliator: Make a paste with 4 teaspoons baking soda and 1 tablespoon of water. Let the mixture sit for 2 minutes, then apply in small, circular motions to your face. Leave on for 3 minutes, then rinse with warm water. Apply your moisturizer as usual. *Oily skin- repeat weekly, Dry/Sensitive skin- repeat every other week.