Gap: 30% off Sale Styles January 28, 2011 This post may contain a link to an affiliate. See my disclosure policy for more information. Through 1/30, Gap is offering up 30% off all sale styles! Just use code GAPSALE30 at checkout. You’ll get FREE shipping every day on orders of $50 or more. **Don’t forget to go through ShopAtHome and earn 8% cash back!