This coupon has expired $4.00 for Purina® Waggin Train® Dog Treats. Offer available at Sam's Club. expires on 05/01/18 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.