17. Tame Your Tresses
To keep hair looking good without igniting a firestorm of static electricity, Brown keeps a natural boar bristle brush in her carry-on. And, she says, never underestimate the power of a great beret or cloche hat to hide the sins of plane hair. "I also find that a big European scarf wrapped around my neck makes the whole disheveled hair look more chic. Sometimes you just have to go with it!