The usual various stuff - change, hand tools, music (8 tracks - yes I'm "that" old, cassettes, cds).
I once bought a 73 caprice convertible that a cat had recently given birth in the trunk - no amount of cleaning agents can ever help that smell especially in the summer heat. Me and the wife still joke about that one. I usually like to honor PO stuff (stickers, my F150 had stickers from a CT state cop that had owned it at one time) if I'm just driving the car as I think of it as good mojo - or just like a person you let in your life has previous exeriences. Back in high school a friend on mine bought a dart that had a prosthetic leg in the trunk for no apparent reason (PO didn't know why).
