Since Boomerang, 39th Street's venerable retro boutique, left its restaurant-row location for a storefront just a few blocks east, a fashionista's Eden has sprung up around it. Westport 39 is a single gray building that now houses five locally owned, stylish shops. So if that otherwise perfect vintage cocktail dress from Boomerang was designed to fit a bustier gal, just take it 10 steps away to Kathy's Alterations. Once Kathy alters the Boomerang dress, pick up a matching clutch and the perfect pair of silver woodland-creature earrings (made by a local artisan, of course) at "femme boutique" Colfax. Then duck into Chop Tops salon for a rockabilly up-do. And don't leave without hitting Mash Handmade to pick up a gift for the host of whatever kick-ass party you're getting ready for.