New Publix Coupons.com Coupon for $1.50/2 Diet Coke 12 Pks November 2, 2011 by iGoBOGO There is a GREAT new coupon on coupons.com if you are a Publix Shopper! Get a coupon here for $1.50/2 Diet Coke 12 pks at Publix! Sort by Beverages to find it.