As she mentioned, if you have trouble with your cashiers accepting coupons you can print this out and carry it with you. Or, better yet—print it from the gift registry computers right there in the store! You can save on your own paper/printer ink, avoid carrying around extra clutter and grab it as needed if there are questions about the proper use of coupons. (By the way, this money-saving trick works with Target coupons too. You can access the store’s website from their computers and print the coupons you need.)
It would be pretty hard for a cashier to argue with a coupon policy posted on the corporate website when they showcase that very website in their store.