In reply to Ridge: Having recently upped my training mileage to a reasonable level for the first time in this lovely Autumn/Winter season there are a few things I do to try and keep myself going and getting out of that door.
1) Make a plan, write it down and write down your progress (alternatively use one of the fancy online equivalents, I just like having a little notebook)
2) Get on the trails, the hills, the footpaths, just somewhere a little more interesting then your normal run. This isn't too difficult if your normal run takes you along the Old Kent Road and through Lewisham...
3) Get competitive. Race your own times on similar routes. Race friends times. Think about how the training will help in the season to come and how that chap in the hognail boots with the limp won't beat you next time, because he's tucked up on the sofa eating PIES. I did take this tip from a Lance Armstrong book though, so maybe this is cheating?
4) Make it part of your journey or a commute. I jog to my climbing gym, mainly because I am poor as dirt, but also because in my mind, I have to go there, so I have to jog 15 miles and if I stop, I'm in Catford or Lewisham and I'll get mugged.
5) Go on a treadmill in a nice warm gym. Not really. That is no way for a self respecting person to improve their cardio-vascular performance as the counter-effect of "becoming a wuss" will slow you down in the long run.
6) Get a friend to keep you company, then you feel bad if you let them down, or some similar feeling. Or the misery is halved. None of my friends want to run with me any more, anyone fancy 30 miles on Sunday on the North Downs Way?
7) Book a little race, like the Grand Union canal Race, the Thames Ring, the Ultra Trail du Mont Blanc or Spartahlon, and scare yourself into activity. That always works for me. IMAGINE FINISHING LAST! Or not at all?
8) By far the most effective method of getting out of the door and training, for me personally, was the decision to move in with my father for a short time. That man could drive me to the ends of the earth with his lectures, drunken rambling and skewed sense of right and wrong. Just live with someone you don't like talking to, works a charm.