If your scalp is naturally oil, you probably have to shampoo your hair daily to keep it from looking greasy or stringy. If, however, you are running short on time or need a quick lift in the middle of the day, grab a box of cornstarch and a large, clean blush brush.
Pour some cornstarch out onto a dish and dip the brush into it. Then, with a comb, part your hair in the center and brush the cornstarch onto your scalp and roots. Make another part 1/4 to ½ inch off-center and repeat. Continue this method down one side of your head, then from the center and down the other side.
Go about your business for about 10 minutes while the cornstarch soaks up the excess oils in your hair. Then, take a brush and brush out your hair, ridding it of the cornstarch flakes.