Costco accepts most returns without time limits, though there are some exceptions. Electronics have a 90-day return window. Cigarettes and alcohol may not be returned where it’s against the law. Airline and live performance event items, ticket items, precious metals, Shop Cards and gift cards are not returnable.

Costco works differently.While a traditional supermarket could easily carry 30,000 or more SKUs (stock keeping units) at a given time, Costco warehouses usually only stock about 4,000 SKUs at a time.

Costco has added a major bonus to its Executive Membership as of June 30. The giant added an exclusive shopping window for its executive members from 9 a.m. to 10 am every weekday morning. Unfortunately,

Sign up for a 1-year Costco Executive Membership and get a $40 Digital Shop Card while the StackSocial deal lasts.

Costco has published a list of items from its catalog that have been recalled. Most of these products — which include cough medicine, sandwiches, tires and air fryers — were recalled in coordination with the U.S. Consumer Product Safety Commission. If you have any of these products at home, the company advises you not to use them.

Sam's Club and BJ's are offering memberships for just $20, while Costco is including bonus shop cards worth up to $40 with new memberships purchased through Stack Social's Deal Days.

According to research from The Motley Fool, Costco is currently the second-biggest consumer staples company by market cap, ahead of Procter & Gamble and behind Walmart. At a market cap of $436 billion, Costco still has a long way to go to catch Walmart, which currently has a market cap of $779 billion.

Cardholders of Costco’s priciest “Executive Member” plan, which costs $130 per year, can now exclusively enter warehouses beginning at 9 am through 10 am Sunday through Friday. On Saturdays, the time slot is from 9 am to 9:30 am. All other members can enter at 10 am Sunday through Friday and at 9:30 am on Saturdays.

Several popular products sold by Costco have been recalled, including air conditioners, power banks, tires, coolers, and more. Find out if you have any recalled items and what to do.

Costco's Kirkland Signature Imported Basil Pesto is one of its top-selling grocery items. The pesto is made with D.O.P. Genovese basil, comes in a 22-ounce jar, and costs under $12. Customers often say this pesto is a household staple and is better than other store-bought pestos.