couponing
/ˈkuːpənɪŋ/
noun
- The activity of collecting and using coupons to save money when shopping.
- Couponing has become a popular hobby for people who want to cut their grocery bills.
- She learned extreme couponing from online tutorials and now saves hundreds each month.
- The store's policy on couponing limits the number of coupons you can use per transaction.