Scott Adams describes a possible solution in "Loserthink" (there's probably a longer section on this in one of his other books: "How to Fail at Almost Anything.

Scott Adams describes a possible solution in "Loserthink" (there's probably a longer section on this in one of his other books: "How to Fail at Almost Anything..."). It's called "wiggle your pinky". If you're on the couch and cannot get up, just try to wiggle your pinky. If you have enough willpower for that, move your arm. Then move your legs, put your feet on the floor, and you're already halfway through getting up. The same with a difficoult (programming) task. Just open the file in the text editor, without having the intention to actually do something. Then scroll a bit through the code. Something might catch your interest. After a minute, you're already in the middle of the task. Summarized: Just do the tiniest step into the direction of your goal, without the intention of actually doing anything to reach that goal.