After well over a decade, Tootsies is still the place for upscale cocktail numbers, sophisticated prom dresses, and mother-of-the-bride gowns. Its nearly 12,000 square feet read like a love letter to the dress, with Peter Pilotto sheaths in bright abstract patterns, edgy leather-trimmed knit dresses by Yigal Azrouël, and flowy full-length pieces from ML Monique Lhuillier. Less pricey options are available too.