There is just something wrong about a grown woman wearing barrettes (even one as gorgeous as Garner). “The clips are infantile, she’d look better with flowy hair,” Nerizagal says. Rule time: The more skin that a strapless dress shows, the more OK it is to wear your hair down. And if the dress is fun, or short, or both, you can make that down-‘do wavy instead of doing a luxe blow out. To get this look (but better):

Step 1: Start with naturally wavy hair and air dry it using a shine-boosting mousse like Herbal Essences Tousle Me Softly Mousse, $3.66.



Step 2: Waves will dry more defined if they aren’t bouncing around, so do something quiet — watch a movie, read a book. A nap — probably a bad choice, unless you’re looking for natural bed head.



Step 3: When dry, run grooming cream like Bumble and bumble Grooming Creme, $25 from half way down to the ends to add shine. Skip the barrettes.