Do you use the trick "Oh, I'll just force myself to run for 15 minutes, then I can quit if I want to"? I use this little mind game all the time, just to get myself out the door. And then those 15 minutes roll around and you're out there and everything's fine and Boom! there's another 10 miles under your belt.
Today, I got to that 15 minute mark and threw in the towel. It was 39 degrees out and I thought I would be just fine with my usual minimal clothes . . . well, I've certainly learned the importance of The Wind Chill Factor. I think I had way too much surface area exposed, and got myself pretty damn cold. Hence, my 7 or 10 mile run turned into a paltry 2.5. I did not feel at all bad for cutting the run short, though, because otherwise I think I might have been dealing with chilblains or something if I had continued.
There's snow forecast for tomorrow, which means skiing! in the morning, and then I'll probably mishmash some indoor track with some treadmill and try to get some milage in for the afternoon. I'm still planning on reaching my 24 mile weekly goal.