I use the coupon on my phone because I don't get the newspaper, so once it is scanned I can't use it until the next day.
Besides, I was just pointing out the options for the use of the 20% off sale, not discussing various tactics for using the 40% off coupon. As many have observed, all Hobby Lobby stores do not operate the same way. My store will not charge full price and the 40% off coupon on a sale item, for example.