Paper? Pa-per? What the hell is that? Leo Burnett's ad for French toilet-paper brand Trefle celebrates parchment in its various forms, presenting a woman who reads printed books, puts sticky notes on the fridge, plays sudoku with a pencil and draws pictures on a paper pad with her daughter. Her doofus husband prefers doing all such activities on his tablet computer, and he admonishes her time and again for being old fashioned. But he gets his comeuppance while sitting on the can (that's Cannes in French). The toilet paper runs out, and when he calls for a refill, she slides his tablet under the door, its display aglow with the image of fluffy T.P. ("Paper has a big future," says the on-screen text.) I picture the wife in the hall, rolling—for lack of a better pun—on the floor with laughter. So, you can wipe the screen, but shouldn't use the screen to wipe? Wish I'd known that years ago.