Amazon.com offers coupons for use on select groceries. Plus, several items qualify for Subscribe & Save, which takes an extra 15% off and yields free shipping.
Notable coupons:
Up to 50% off on Kitchens of India products via code "KITINDI5"
Up to 50% off on Corazonas Chips products via code "CHPHEAR5"
Up to 40% off on Special K products via code "SPCKDEAL"
Up to 40% off on Bear Naked products via code "NTRLGRNL"
Up to 35% off on Crystal Light products via code "CRYTLBEV"