When purchasing an item at Walgreens, you can use one manufacturer coupon and one Walgreens coupon. The one thing to remember when stacking at Walgreens is that the number of manufacturer coupons, including Register Rewards manufacturer coupons, may not exceed the number of items in the transaction. That is why you may sometimes need “Filler” Items.
CVS allows one manufacturer coupon and one CVS store coupon per item purchased.
Rite Aid will actually allow THREE coupons per item purchased. Their policy states that you may use one manufacturer coupon, one Rite Aid RC48 coupon and one Rite Aid RC49 coupon. To figure out what the RC code is, look at the first 4 digits in barcode.
Target allows one manufacturer coupon and one Target Store coupon per item purchased. Target Store coupons include those found in-store, online and in newspapers. Regardless of source, you may only use one Target Store coupon per item.