Product bundling is a technique where multiple products are grouped together and sold as a single unit at one price. This strategy encourages customers to purchase more products. There are several advantages to product bundling including increasing average order value by making customers purchase more than one item, reducing inventory waste by pairing fast and slow-selling items, and decreasing marketing and distribution costs by promoting bundled products instead of individual items. Common types of bundles include pure bundles where items can only be purchased together, mix-and-match bundles where customers can choose options, and cross-sell bundles that pair complementary products.