This year was a pretty boring year for me, at least as far as travel goes. Below is a list of cities I slept in this year. This is the first year I have documented it online, but I think in previous years the list would have been longer.
Byhalia, MS
Asheville, NC (actually, a small rest area on the outskirts of Asheville, during a snowstorm)
Interstate 75 (in a Greyhound Bus)
Cincinatti, OH
Raleigh, NC
Like I said, I went a lot more places than this, but to make the list, I had to spend the night there.
(got the idea from Kottke)