I'm an idiot, I admit it now, but in case anyone else gets the same idea, here's a warning. I had gotten some pineapple goo on my iPod nano screen and was looking for a way of cleaning it off. I figured that the paper hand towels in the rest room would be a bad idea, because it is quite coarse. Then I got the bright idea that regular copy/printer paper might work, because it's quite smooth, and smooth paper is good for wiping windows with, right. Well, guess what, copy/printer paper isn't good for wiping stuff off your iPod, it scratches it badly. Time to buy some metal polish, I guess.