Greenies Coupons 2012 Greenies Dental Chews have been a huge hit around here for a while.. Save $3.00 on one package of GREENIES Canine Dental Chews 12oz or larger…..with this great coupon. Greenies printable coupon This coupon comes from my RED PLUM page and you can print it two times.. The expiration date is 03/31/2012. [...]