THE BEST DIY FACIAL CLEANSER IS POSSIBLY POWDERED MILK

A model's trick (because most of them are teenagers, and teenagers break out) is to keep some powdered milk on the bathroom vanity. Pour a small amount in the palm of your hand and gently rub into the oiliest parts of the skin (nose, temple, etc.).

It should be in the consistency of a soft paste. Why dry milk? Because milk is lactic acid, and lactic acid is one of the most effective ways to exfoliate grime and debris. Most of the skin cleansers charge you a lot of money for a simple product that you can easily get in your local grocery store.