This could be a girl who you take OTC or even just one who you give a ride to for some reason or another. Have you had anything left behind in your car? If so, what is the worst thing you've found there?
For me the oddest thing was a half eaten chicken wing, which I found in my cup holder this morning. That was kind of disgusting.
More common is that a girl leaves behind a work bag of some type. It seems to happen to me about once every two years. One girl left a bag that smelled so bad from whatever skank juice she was using that I had to throw it out and then disinfect the car. Nowadays I have to do a morning check of my car just to make sure that it's empty.. If I find a bag and it doesn't seem to have anything important, I'll usually toss it to dispose of any evidence of wrongdoing. However, the last purse that was left in my car had the girl's state ID and other important stuff, so I hid it until I could get back up to her area - that sucked.
Mostly make-up.....eye liner pencils or lipstick.
Pair of sunglasses once a couple of years ago.
Typically it's something that falls under the car seat and they can't find it in the dark and then we both forget it was dropped until I am cleaning my car on the weekend.
Oddly enough not one girl had ever forgot the take home food from going to a restaurant.......somehow it always is remembered.