Door buzzers. Yes, I know the keys are in the ignition and don't need to hear that thing going off constantly. I am trying to get into the habit of tossing them onto the dash, but too often I end up dropping them onto the seat. Yesterday at the gas station I spent 15 minutes looking for them after filling the tank... I even went through the trash can as I had thrown out some papers. Finally, after the 4th or 5th time moving the seat back and forth I found them... under the funnel the seat belt forms where it comes through the seat.