Did you get a great blowout this weekend? Make it last! Here’s how: First, use a coated fabric shower cap instead of a plastic one—it minimizes sweat and frizz created from shower dampness. Then, before bed, pile your hair on top of your head and secure with a nonmetal elastic band (Goody Ouchless elastic bands, $2/pack) to boost volume without causing dents. In the morning, revive flat sections with a styling lotion (Bumble and Bumble Prep, $19), and blast with heat for lasting hold. Click through the gallery for more ways to keep your look feeling fresh.