As a telecommuter, I well know the struggle with self-discipline. It's very hard to keep away from all the regular home-distractions and actually get down to work. But it's a necessary part of every day life.
This article on training self-discipline has some good tips on how the author has been working towards better self-discipline, and also some good general discussion on the benefits.
I especially agree with his point that you need much more discipline if you have large amounts of freedom. I remember it being much easier to get down to work when I had to actually get up and go into the office at a set time each day.
Anybody else here telecommute? Do you do anything to wok on your own self-discipline?