Shoppers can find Costco's weekly specials in the form of warehouse coupon offers on specific products at the store's official website at costco.com. Other sites such as onlineweeklyads.com post the Costco weekly ad with the current coupon offers.
In order to shop and take advantage of coupons at Costco, shoppers must be current members with a paid membership fee. Shoppers can redeem coupons with no scanning required by showing the Costco app on a smartphone to the cashier or by printing the coupons out. Costco customers may receive other specials and discounts when they enter an email on the homepage at costco.com.