If you miss a washing or two, don’t worry — it’s easy to make your hair look freshly washed. You’ll want to hide the fact that it’s dirty, obviously. In that case, dry shampoo is your best friend. (Lately everyone in the office has been raving about Rene Furterer Naturia Dry Shampoo, $24, yep, we’re all a little lazy.) “Concentrate on the crown, the top part of your scalp where it’s the oiliest,” Sebbag says. “Lift up your hair in sections and just spray it on the roots, doing three or four layers of this.”

Next: Our favorite lazy girl hairstyles