Subscribe & Save is a subscription model that incentivizes customers to commit to recurring orders in exchange for a discount. It's popular for consumable products like supplements, pet food, beauty products, and household essentials. Typical discount structures: - 10-20% off one-time purchase price - Tiered discounts (more items = higher discount) - Additional perks for subscribers (free shipping, early access) Benefits for merchants: - Predictable recurring revenue - Higher customer lifetime value - Lower customer acquisition costs per order - Improved inventory planning