In terms of its endorphin-boosting potential, a good hair day is on par with a good workout.
There's nothing new about fashionable women borrowing from men's style; just think of Marlene Dietrich, Brigitte Bardot, or Diane Keaton.
A sure way to claim a bit of cool in Hollywood - if you're an actress, at least - is to announce you don't have a stylist. Some of the most consistently elegant, inimitable women on the red carpet, like Marion Cotillard, Blake Lively, and Diane Kruger, say they go at it alone.
