Gap: Save 20% on Adult Styles and 10% on Kids Styles! August 12, 2010 by Mitchell Wischmann This post may contain a link to an affiliate. See my disclosure policy for more information. Gap just released a new coupon code! Save 20% on adult styles and 10% on kids styles when you use coupon code GAP2010 at checkout. Offer expires 8/16/10 at 11:59pm EST.