I've been struggling to stay motivated on the longer runs and have found most of my music to be a bit stale. The music's good, mind you, but I've just heard it so many times that it's lost its luster.
This past weekend I decided to let my lack of time and scheduled long run work well together. So, in addition to the standard work out playlist, I created a "to-do" playlist in iTunes and synced it to my fitness iPod.
The to-do playlist consists of new music that I just haven't had the chance to listen to. It may be a new type of music or a CD that a friend has burned for me. I only have so much time in the car and don't often get a chance to listen to everything. But, on those long runs, I've got nothing but time.
The one down side is that it's not always "pick me up" type music with a rhythm that keeps us going as you near the end. It hasn't been a problem so far, though, because at least it's new and I can concentrate on the new stuff.