I just didn't feel like all the clothes.......7 miles on the treadmill in our gym in the basement at 5 AM. It really is kinda nice to have the sensation of being soaked with sweat in January!
It should be said, I'm a Florida native.....so I'm "one" with Gatorade.
Anyways, took my Thinkpad with iTunes on it to the basement and did the 7 miles watching the Spirit of the Marathon trailer and to music from the Conan the Barbarian soundtrack. (I know, my wife thinks its weird, too).
Plus strength and core work. I am convinced that a sound core not only makes you a better runner, it would have prevented the 4 month set back that sciatica has handed me.