Flat, limp hair is a dead giveaway that you were too lazy to wash your hair that day. (Remember, you may be lazy but you don’t want people to know that.) You can instantly take your hair from flat to voluminous by using a volumizing product — whether its sprinkling a tiny bit of volumizing powder into your roots or misting all over with a volumizing spray (try: Sebastian Volupt Spray, $19.95).

Next: Work with your hair’s natural texture to save time