Dimitrios Kambouris/Getty Images, Time Inc Digital Studio
If your fine strands tend to look greasy the minute you open your eyes, "use a dry shampoo preventively," says N.Y.C. hairstylist Ryan Trygstad. Spray roots until hair feels chalky. "The powder will suck up oils as they're produced," he says. "Come morning, you won't have to degrease or worry about seeing powdery residues." Then you can style and go!