Admin and all around good guy.
I use a half inch flash drive in my car for my fav playlist. It slides into a slot in my side arm glove box that is between our seats. Never see the drive but can use it.I think some flash drives are too small. I've got a few that are probably less than 1/2" long. They're hard to plug into a USB port and extremely easy to lose. However, I've also got a couple flash drives that are too wide to use in a USB port because I have something else plugged into the USB port next to it, like, say, a keyboard.