Fix minor puckering in the cups by smoothing down and "tucking in" your breasts. Fit check: If there's a major gap between bra and body, the cup's too big; if you're overflowing the top or sides, it's too shallow. Wacoal bra, $48.
Our December issue features Oprah's Favorite Things—as well as your chance to win them all! You'll also find our easy holiday declutter plan, Dr. Oz's guide to sleeping better (starting tonight) and the ultimate holiday menu.