Because I have thick, long hair, I rarely have time to wash it after every workout. On the days I find myself short on time, I reach for a bottle of dry shampoo, which is great for refreshing hair. No one will guess that you just spent an hour on the treadmill!
Clockwise from top left: Rene Furterer Naturia Dry Shampoo ($24), Batiste Dry Shampoo ($5), Pssssst! Instant Spray Shampoo ($6), Oscar Blandi Dry Shampoo ($21)