You'd be hard-pressed to find an item of clothing that isn't suddenly more slimming when belted at the waist—a woman's naturally thinnest point. Cardigans? Check. Blazers? Check. Coats and dresses? Check and check. For best results, keep a variety of cinchers on hand, from wide versions with bold buckles (great for maxi dresses and circle skirts) to skinnier numbers in bold hues (they'll look great wrapped around your favorite cardi or minidress).