I recommend printing your coupon policies (or even better - saving them to your phone!) and having them on hand if they are needed. I honestly have not needed to use them yet, but I have heard of people needed to verify that they are able to use certain coupons.
I will try to stay up to date, but please note that coupon policies may change without my notice. Please check the links below to stay up to date on coupon policies.
Walgreens Coupon Policy
Highlights - "The number of manufacturer coupons, including Register RewardsTM manufacturer coupons, may not exceed the number of items in the transaction. The total value of the coupons may not exceed the value of the transaction. Sales tax must be paid, if required by state law."
"When purchasing a single item, Walgreens accepts one manufacturer coupon and applicable Walgreens coupon(s) for the purchase of a single item, unless prohibited by either coupon offer. "
Target Coupon Policy
Highlights - " Target accepts one Manufacturer Coupon and one Target Coupon for the same item (unless prohibited by either coupon)."
"We can't give cash back if the face value of a coupon is greater than the purchase value of the item."
Walmart Coupon Policy
Highlights - "If coupon value exceeds the price of the item, the excess may be given to the customer as cash or applied toward the basket purchase."
"Only one coupon per item"
