Every lady knows that dresses are the superheroes of our closets. They skim over figure flaws in a single bound! They make us look polished, even when we've gotten dressed in the dark (again)! If you ask us, you can never have too many of these instant outfits. These days our go-to source is Bloomingdale's — with literally thousands of dresses by every designer under the sun, we can always rely on Bloomie's to deliver us to the dresses of our fondest dreams.Need a little guidance before you leap into the fray of frocks? No problem. Whether you want to conquer the boardroom in a sleek sheath, stomp the streets of Chelsea in an avant-garde draped dress, or glitter like a Gatsby in drop-waist sequined number, we scoured Bloomie's massive collection to bring you the 20 best. Ready to look immaculate in an instant? Check out our best dressed picks, straight ahead.