(we have an unobtrusive cup-holder between the backs of the front seats, I don't remember ever using it)

I keep loose change in it for when I need it when (say) paying motorway tolls, as my father does; it had never occurred to me to use it for anything else. IIRC my mother keeps stuff like crucifixes and medals of saints in it, and the couple cars I glanced into on my way from the parking lot this morning also contained non-cups such as pieces of paper.