Denny’s: Get 20% Off your Entire Order Go here to print off a coupon for 20% off your entire order at Denny’s. Coupon good through September 19th, 2011. (Thanks Moms by Heart!) PinShareTweetYum0 Shares Pssssst... Make sure to follow along with @HappyMoneySaver on Instagram, connect with me on Facebook and pin along with me on Pinterest!. Want all the latest straight to your inbox? get the Happy Money Saver Newsletter straight to your inbox!