Warehouse clubs are large retail stores that sell a wide variety of products in bulk at discounted prices. They typically require a membership fee for customers to shop there, allowing them to access lower prices on groceries, electronics, and household items. Popular examples of warehouse clubs include Costco and Sam's Club. These stores often feature a no-frills shopping environment, with items displayed on pallets and minimal decoration. Warehouse clubs focus on high-volume sales, which helps them keep prices low. Customers can save money by purchasing larger quantities, making these clubs appealing for families and businesses looking to stock up on essentials.