Send 5 $1/1 Diet Coke Coupons to Friends By A Mom's Paradise | September 14, 2010 - 11:21 am |September 14, 2010 coupons “Like” Diet coke on Facebook and send 5 $1 off/1 cokes to them. Go here to Like them and send your friends the coupons. Ask them to please send you a coupon back so that you can get your Diet Coke as well. 🙂 Thanks to Pirates of the Supermarket Tagged coupon. Bookmark the permalink.