Banana Republic: 25-30% off Online PurchasesDecember 3, 2010 by Mitchell Wischmann This post may contain a link to an affiliate. See my disclosure policy for more information. Today through December 5th, you can get 25% off your entire Banana Republic order or 30% off when you use your BR, Gap, or Old Navy card! Just enter coupon code BREVENT at checkout.**Don’t forget to go through ShopAtHome to earn 4% cash back!