While in the midst of creating a list of favorite songs from the mildly extensive iTunes library, I decided I wanted to limit my song selection to only one per album.

Tougher than you think, creating a list that might well have multiple artists, but only one tune per CD. Even tougher if you don't let yourself pick twice from a double album (only one from Stadium Arcadium or Substance -- yikes!). Certainly makes for a good mix, though.
Oh my gawd! Whats On Your Mind used to be my finisher song back when I was running.
If I didn't make it to the point I wanted to hit before Spock said "Pure Energy", I went and did pull-ups until my arms were like jello.
If only I still had that pure energy.
Funny -- while I'm still not running nearly as much as I'd like to, it's in one of my "30 minute mixes." Pure energy is right.