Shoppers can view Costco's weekly ad by clicking the link to warehouse coupon offers at the top-right of Costco's website. However, to actually use any of the deals, a shopper must be a Costco member and present the coupon to the sales clerk at the store.
Smartphone users can present a coupon via the Costco app instead of printing a paper coupon. Shoppers can also create an account and set a preferred Costco location on Costco.com, allowing its weekly promotions to be emailed directly to the customer. Discounted items are extremely diverse, ranging from foodstuffs, nutritional supplements, electronics and auto supplies to hygienic essentials and cleaners.