If you are as cheap as I am, try visiting the Dillard's Clearance Center. Located at Six Flags Mall, you might want to pack your taser and/or mace too, but it's actually worth the trip.
You can find great designer clothing at at LEAST 75% off of retail - many times more if you find the secret coupons in the Star Telegram. I have found some great shoes, clothing and even housewares there for next to nothing.
Six Flags Mall is pretty run down now, but it used to be THE place to go when I first moved to Arlington (can you tell how old I am?).
It's a treasure hunt every time I go to Dillards Outlet Center, but it's a FUN treasure hunt!