I'll second the shock you get from cloth seats. I get shocked every single time I step out of my car and close the door. I've started purposely walking around the door and closing it by pushing on the glass (which then gets all smudged).

The car that's shocked me the most was my mom's '84 or so Cadillac Seville, and it was all leather. One time, in the middle of winter, I got out of the car, and it shocked me when I brushed past the door with my shoulder, through an insulated leather jacket. It left a pinhole in the leather. I've never been shocked so hard in my life. I finally learned to grab the door frame before setting foot on the ground, and it never shocked me once I started doing that.