I learnt you can buy a lot of things on walmart. But i have never been there before
Walmart is great. They also have larger stores called Sam's Club.
What are the activities to be performed in the club
Sam's Club is a membership only warehouse retail store. It's like Costco
Ok i see. do you belong to the club?
Costco
Costco Wholesale Corporation, doing business as Costco, is an American multinational corporation which operates a chain of membership-only warehouse clubs. , Costco was the second largest retailer in the world after Walmart, and , Costco was the world's largest retailer of choice and prime beef, organic foods, rotisserie chicken, and wine. Costco is ranked on the Fortune 500 rankings of the largest United States corporations by total revenue.
Costco's worldwide headquarters are in Issaquah, Washington, a suburb east of Seattle; the
Sam's Club
Sam's West, Inc. (doing business as Sam's Club) is an American chain of membership-only retail warehouse clubs owned and operated by Walmart Inc., founded in 1983 and named after Walmart founder Sam Walton. , Sam's Club ranks second in sales volume among warehouse clubs with $57.839 billion in sales (in fiscal year 2019) behind rival Costco Wholesale.
Its major competitors are Costco Wholesale and BJ's Wholesale Club. 
, Sam's Club operates 599 membership warehouse clubs in 44