Costco offers monthly discounts, both on its website and through its smart phone app. These coupons can be redeemed at Costco stores or through the online shopping cart.
Costco allows customers to redeem coupons in-store by either printing them out or simply by showing the coupon on a cellphone. Some of the higher-value coupons have limits on the number of items a customer can purchase at a time, but many of the coupons are good for an unlimited amount. They cover a wide range of products, including phones, electronics, cleaning products, food, supplements and also services at the photo center.