Get up to 50% off men's and women's sale styles, then take an extra 50% off when you apply the code PERK in your cart at Gap.com. Shipping is free when you spend more than $50. Otherwise, it adds $7. The promotion includes this women's GapFit Jacquard Mock-Neck Sweatshirt, which lists at $79.95. It's already on sale for $39.99, and the price falls to $19.99 with the code. This men's All Day Pique Polo Shirt falls from $39.95 to $19.99 to $9.99. Those are the best prices we found anywhere. Sales tax is charged in most states.