I also discovered that my current phone / car combo will allow me to start playing songs from my phone when I start up the car, stop when I leave the car, and then pick up again when I return. This has led to me listening to a lot of tracks that I haven't heard in a long time.
So for those of you who are Luddites enough to keep downloaded ripped music on your phone or other music storage device, how about hitting shuffle on all tracks and letting us know title and artist for the next ten tracks to pop up? (If you only do streaming, I suppose you can shuffle your favorite streaming source instead. :) )