I have discovered a great motivator to keep me running for longer - my ipod nano!
It's fab. I went running on Saturday, and after work today as well. It's amazing how one feels compelled to keep running til one gets to the end of a song. Without little morsels of temptation and challenge like that, I probably would stop more regularly and run for less time each time (yes, I am still doing the run-walk-run-walk method).
So thank you Apple, and thank you Madonna for your latest album...you really are keeping this whole running malarkey sweet for me!