Grow out your hair.

Photo: Marko Metzinger/Studio D

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Grow Out Your Hair
It sounds counterintuitive, but it's best to cut your hair an eighth of an inch every six weeks, says New York City stylist and salon owner Ruth Roche. Here's her logic: If you let your hair grow for six months without getting a trim, when you finally do cut it, the stylist will have to lop off at least a couple of inches of split ends. If you get regular trims—always less than half an inch since hair grows only that much a month—you'll cut off less and your hair will continue to look healthy throughout the growing process. 

Kate Sandoval