Day 3: Short Hair
Unwashed hair is prime for holding its shape, making day three a good time to attempt a coif like Hayden's blown-back look. To start, apply a liberal dose of shade-matching dry shampoo to absorb excess oils. Then, pump a quarter-sized amount of mousse into your hands and run it through your strands, pushing it into the windswept look seen here. Your hair might feel unspeakably dirty, but the sleek and chic effect relies on the extra texture to keep its place.
RB Tip: Women with grown-out pixies or longer bobs can secure strands with a large barrette at the nape of their neck to mimic this look.