If you haven't even started your Christmas shopping yet, take heart! GAP has you covered with a deal that will put plenty of gifts under the tree while going easy on your wallet. Today only, take 40% off your entire purchase with code GAPXMAS. Plus, when you spend $50 or more and place your order before 3 p.m. EST today, your entire order will ship for FREE with guaranteed Christmas Eve delivery! Some exclusions apply. See site for details. 40% discount is valid until midnight tonight. Free shipping offer expires at 3 pm TODAY, 12/20/2013.