Costco is a membership-based warehouse club that offers a wide range of products, including groceries, electronics, clothing, and household goods, all at competitive prices. The company emphasizes bulk purchasing, allowing members to save money by buying in larger quantities. Costco is renowned for its high-quality private label brand, Kirkland Signature, alongside other well-known brands. The store layout typically features a no-frills design, prioritizing efficiency and value for customers. With a strong commitment to customer satisfaction, Costco also provides various services, including travel and insurance options.