When you are drying off your hair after a shower, do take care to be quite gentle. Vigorous and enthusiastic rubbing can cause hair damage and breakage to occur, not to mention, tough to remove tangles. Instead, take the towel and gently squeeze out the excess water, while delicately blotting the roots.
If you have oily hair, do not wash it everyday. Washing your hair two or three times a week is fine if it tends to get oily. Make sure you wash your hair thoroughly and rinse all the shampoo or conditioner out of your hair. If your hair stays oily, try different products.