Hundreds of dresses drop below $28 at Macy's when you use the promo code FRIEND during checkout. Check out these Style & Co. Sleveless Knit Dresses, which fall from $49.50 to $27.72 or less with the code. These are the lwoest prices we've seen all season. Log into your free Macy's Rewards account to get free shipping at $25. Otherwise, shipping adds $10.95 on orders below $49. Editor's tip: Simplify your search by choosing misses, petites, plus, and junior sizes. from the drop-down menus.