I had another first today, and one I think I'll remember for a while: today was the first time I'd heard Johnny Cash's "I've Been Everywhere" at a funeral! I must admit I smiled at it, to the point my wife noticed. I'm even thinking of including it in my own funeral plans...
I think this one would be an awesome song for this...
I really like how it blends into Van Morrison's "Into the Mystic".