The Just-In-Time (JIT) inventory method is a business strategy that focuses on reducing the amount of inventory held in stock and delivering items to customers in the shortest possible time. This approach eliminates waste caused by overstocking, and helps streamline operations, allowing businesses to get more value out of their existing assets. It also helps with flexibility, as there is less lead time between ordering items and receiving them. By adopting this approach, businesses can reduce costs while increasing efficiency, ultimately improving customer satisfaction.