Rue La La: "Prom" dresses are on sale for under $100. (Despite the prom categorization, many dresses would be perfectly suitable for a wedding or other formal, non-high school affair.)
Duration: Until Thursday at 11 am EDT.
Neiman Marcus: Sale items are an extra 25 percent off, for a total of up to 70 percent off dresses by Rachel Zoe and Marc by Marc Jacobs, as well as boots by Giuseppe Zanotti and Prada.
Duration: Until Wednesday at 10 am EDT.
Bloomingdale's: A big selection of Spring-appropriate items is 20 to 30 percent off.
Duration: Until April 1 at 11:59 pm EDT.
White House Black Market: Swimwear and cover-ups are up to 40 percent off.
Duration: While supplies last.
Saks: Get an ikat print Rebecca Taylor scarf with a $250 women's contemporary apparel purchase using code CONTEMPWA. Plus, get a $100 gift card with a $500 contemporary purchase using promo code CONTEMP2.
Duration: Scarf available while supplies last; promo code valid until April 1 at 11:59 pm EDT.