I take old receipts lying around in my car and make those all the time. I leave it under their windshield wiper.
One time a guy parked so catty-cornered next to my car that I had to get in through the passenger side and crawl into the driver’s seat. I shit you not, there was maybe an inch or two between the left side of my car and the front right of his truck. So, I wrote a note that said, “If you make love as badly as you park, I feel awful for your wife.”