When you are press for time and your hair is greasy or oily, here is a simple trick you can do to keep your hair looking fresh. Just sprinkle a bit of baby powder on your hair and gently massage it into your scalp. Then comb your hair until the powder is no longer visible. Easy peasy right? The baby powder will soak in the oil fairly well. With this quick freshening up trick, you do not have to wash your hair daily. Another good option is to use corn flour.