All right, I'll join the state meme trend. It's gone through several variations, so I hope I'm sufficiently up to date.
States in which I have lived:
States in which I have spent lots of vacation time:
States I've just visited overnight more than once, for various reasons:
States I've Driven or Flown Through:
Tennessee (I Think)
States I've Passed Through In Which I Did at Least Spend the Night: