328 E 66th St at Second Ave. Subway: 6 to 68th St–Hunter College. Inside Sanat Hair Salon, scoop up this NYC designer’s swimwear and dresses for up to 75 percent off. Snack on gratis Baked by Melissa cupcakes and shop watercolor chiffon dresses for $25 (were $156); Lycra one-piece bathing suits, lowered from $190 to $75; and bandeau bikinis tagged $50 (usually $150).