Banana Republic: 20% off Your Entire Purchase!September 20, 2010 by Mitchell Wischmann This post may contain a link to an affiliate. See my disclosure policy for more information. Banana Republic is currently offering up 20% off your entire purchase at BananaRepublic.com! Just use coupon code BRSAVE20 at checkout to see the savings. Hurry for the best selection!Expires 9/24/10.