Remove excess oily buildup and styling product from hair by applying shampoo to head without water. Rub into scalp as usual, and let it set for 3 minutes - it won't lather, but it will work to cleanse hair by pulling out debris. Follow with a regular shampoo and conditioning routine.
Take care not to apply conditioner directly to scalp. Instead, work into the ends of hair, focusing on areas prone to breakage and split-ends. If you're concerned about oil, a good rule of thumb is to focus conditioner application from the ears down where hair is older and dryer and still needs moisture.
Take It Easy
Consider easy wear, finger-styled looks without a lot of muss and fuss. Too much combing and brushing stimulates oil production, which can be a big problem for people with excess oil. Brush lightly when you do brush, and try to stay away from the scalp if possible.