A "buy-one-get-one-free" offer, often abbreviated as BOGO, is a promotional deal where customers can purchase one item and receive another identical item at no additional cost. This type of offer is commonly used by retailers to encourage sales and attract customers. It can apply to various products, including groceries, clothing, and household items. These promotions are designed to increase customer satisfaction and boost sales volume. Shoppers often perceive BOGO offers as a great value, leading them to buy more than they initially planned. Retailers may use these deals to clear out inventory or introduce new products to the market.