Here's a little tip!

If you are using an in-add coupon (for example from BuyLow) to price match at Walmart, be aware that some cashiers and managers will require you to hand over the coupon. I am not quite sure why they need the coupon since they are not redeeming it at BuyLow. However, you should be aware that even though their policy states that you do not need to bring your add in with you, not having the in-add coupon may keep you from coming home with your great deal.