Actually, I use windex. I wipe it, scrubbing hard. Then I put some grease cleaner on it to be sure. I toss is in the washer after that. I know I'm getting a good clean then. I slide it in my tray in the kitchen, let it air dry. If they're open, I drop it off at the dry cleaners. Usually they get it right, but occasionally they lose an IC chip or pixel. That's okay. Last time, when they lost an IC chip, all the profanity in my ebooks dissappeared. So that's okay.
Sony said you woulden't believe the calls they get....