I seriously need to make a B-sides or something for the I've Been Everywhere fanmix. I keep finding more songs that definitely should have been on it. Like The City of New Orleans by Steve Goodman:
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http://www.youtube.com/v/eXGFKpWUOW Also, I just recently started listening to Bob Dylan. OMG you guys, I didn't know what I missing! D: There totally should have been some Bob Dylan on that album somewhere. A Hard Rain's A-Gonna Fall, maybe, though that one makes me think about Castiel wandering around looking for his dad more than Sam and Dean and the Impala, which was the concept.
And I know--I know--there are lots of perfect songs about traveling around America that I don't even know about. Yet.