Costco (NASDAQ: COST), Walmart's (NYSE: WMT) Sam's Club, and BJ's Wholesale (NYSE: BJ) all operate under the same model. They sell memberships that allow people to access their "clubs" -- warehouses filled with low-priced merchandise often sold at bulk. These are no-frills establishments where the goal is to sell items at the lowest-possible cost.
Members can save a lot of money if they do things the right way, but there are all sorts of ways to overspend at a warehouse club. It's important to know everything you can about shopping at this type of business so you can maximize your savings and cut down on the mistakes.
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