If you ever find yourself critically greasy and without a canister of dry shampoo, everything will be fine. Just grab a huge fluffy powder brush along with some translucent powder and dust your roots like you would your t-zone. Even if you're not fresh out of Pssssst, this is a more controlled, subtle way to fake cleanliness without transforming yourself into a 17th century magistrate. Thanks desperation!
Photo by Tom Newton.