This coupon has expired $0.50 for Challenge® Salted or Unsalted Butter. Offer available at Walmart. expires on 12/31/18 Other coupons you may be interested in $1.00 for Sangria Senorial (expiring on Monday, 01/02/2023). Offer available at multiple stores. $1.00 for Jarritos (expiring on Monday, 01/02/2023). Offer available at multiple stores.