Cash in coupons is a term used to describe the process of redeeming coupons for goods or services. It involves presenting a coupon to a retailer or service provider in exchange for a discount or free item. The term 'cash in coupons' is often used to refer to the act of redeeming coupons for money, such as when a customer presents a coupon to a store and receives cash back. This practice is becoming increasingly popular as more retailers offer discounts and promotions to customers who use coupons. Redeeming coupons can be a great way to save money on everyday purchases.