The Gap has announced on its Facebook page that you can get 50% off all sale items in-store today 12/26 through NOON. See store for details. For good measure I suggest calling your local store to make sure store personnel is aware of this sale at the location nearest you.
If you’d rather shop at a Gap Oulet location, take this buy one get one free item coupon with you. Coupon good 12/26-12/27.