Sometimes I like to shop at Walmart just for the people watching!
Walmart also owns Sam's Club retail warehouses all across the country!
I was at Walmart the other day, and they had car batteries fo $30. I need to remember that next time I need one.
Walmart denies wrong doings and says that low prices are the result of hard work and efficiency. 
Well they seem to aggressively negotiate contracts with their vendors as well.
Walmart Canada
Walmart Canada is the Canadian division of Walmart which is headquartered in Mississauga, Ontario. It was founded on March 17, 1994, with the purchase of the Woolco Canada chain from the F. W. Woolworth Company.
Originally consisting of discount stores, Walmart Canada's contemporaries include Giant Tiger, Home Hardware, Canadian Tire and Dollarama. Based on the success of the US format, Walmart Canada has focused on expanding Supercentres from new or converted locations, offering groceries which puts them in the same market as supermarket chains
Walmart
Walmart Inc. (; formerly Wal-Mart Stores, Inc.) is an American multinational retail corporation that operates a chain of hypermarkets, discount department stores, and grocery stores, headquartered in Bentonville, Arkansas. The company was founded by Sam Walton in 1962 and incorporated on October 31, 1969. It also owns and operates Sam's Club retail warehouses. Walmart has 11,368 stores and clubs in 27countries, operating under 55 differentnames. The company operates under the name Walmart in the United States and Canada, as Walmart de México