Sixmil,
don't need a sticker, since my turnsignal button is mounted to the imaginary 40mm cannon mounted under my headlight. I'm constantly hitting that button trying to get cagers out of my way! Surprised I haven't bought a new button by now. Seriously though, out of nervous habit or whatever, I'm constantly hitting that thing to make sure I haven't left my blinkers on, but I love your wifes idea!!