By Sue Erneta
This summer's "it" skirt does double duty: Dress it up with a belt and platform sandals, or wear it instead of shorts on the weekend. Skirt, DKNY Jeans. T-shirt, J.Crew. Earrings, Silpada. Belt, Kenneth Cole. Bracelets, Old Navy. Clutch, White House Black Market. Shoes, Mossimo for Target.