Clipping coupons has historically been a highly reliable strategy for lowering your family’s weekly grocery bills. However, modern retail technology and widespread digital fraud are forcing supermarkets to completely rewrite their corporate policy books. Legacy methods that extreme couponers utilized for decades are being systematically banned at checkout registers across the country. Cashiers are enforcing highly strict digital validation rules to protect store profit margins from costly misredemptions. Let’s look at how coupon etiquette has changed and what prominent stores no longer allow.