This coupon has expired $1.00 for Post® SOUR PATCH KIDS® cereal. Offer available at Walmart. expires on 08/02/19 Other coupons you may be interested in $1.00 for Jarritos (expiring on Monday, 01/02/2023). Offer available at multiple stores. $1.00 for Sangria Senorial (expiring on Monday, 01/02/2023). Offer available at multiple stores.