This video demonstrates how to get rid of greasy hair. It is actually bad for your hair to wash it every day, so the host washes hers only every four days. To get rid of grease, put a small amount of baby powder on your finger tips and rub them together to evenly distribute, then run your fingers through your hair. Use as much or as little powder as needed to get rid of grease. You can buy waterless shampoos, though they tend to be more expensive than baby powder, and do essentially the same thing. Another way to get rid of greasy hair is to make sure you wash your hair brushes every two weeks because grease builds up on them as it does on your hair. This can be done easily by taking them into the shower with you.