I have two questions.
1) How cold does it have to be for you to hit the treadmill? It's supposed to be be in the single digits for at least the next week where I live. Average is around 20-30 degrees. I'm not sure if I should keep heading outside, or if I should stay inside until it warms up again.
2) How do you deal with boredom on the treadmill? An hour run on the treadmill feels way longer than it does outside.