The last few days when I've got into my car in the morning there's been a bit of mist on the windscreen. No big deal, it's been raining a lot and it's cold and clammy. Like a clam. It always cleared up pretty quickly once I put the demister on.
Come to think of it, there's been a bit of a musty smell too. It blows away soon enough when you crank up the air though.
But this morning I could have sworn that I was getting a wet bum as I drove around. I stopped and felt the seat. It was a bit damp. Hmm. The back seat was even more damp. Aaah, perhaps something to do with the inch of rainwater on the floor in the back of my car.