Seriously, the best high-end department store in town. If you're in the market for name brand clothing, designer fragrances, a special event dress, etc. Try Nordstrom first.
They have the best customer serve -- they actually still believe in the old adage, "The customer is always right." They'll take anything back, even without a reciept, often offering a refund, or they will exchange it for a new item.
Much better than being treated like a criminal when you try to return something at some valley stores...