If you think you may have found a favorite (like Keira Knightley's fave, Coco Mademoiselle), go back and try it on the inner wrist of your dominant hand—but don't rub wrists together, as friction alters the smell. Leave it on for several hours before you buy, since it takes time to ascertain how the notes will develop with your skin chemistry.
BUY ONLINE NOW
Coco Mademoiselle, $80/1.7 oz; at chanel.com.
Style 101: Tips for Every Woman
Devon Jarvis
