Perhaps not the healthiest advice if you don't have any addictions already but: One of the things I do is to blackmail myself with my addictions/vices when I wa

Perhaps not the healthiest advice if you don't have any addictions already but: One of the things I do is to blackmail myself with my addictions/vices when I want to do something that I don't really want to do. Have the reward present on my desk and just DON'T touch it until whatever I want is done. If you break it down to pair short bursts of intense rewards, preferably something with a chemical component, for the completion of small short-term objective, (I think my shortest is about three minutes; reward for finding bugs in horrible code,) that approach seems to work reasonably well. (At least, provided your initial urge to start the action is sufficient.) You only have to deny yourself the reward for a short while. I find I can increase the initial urge to do the activity by writing stuff down to do at the start of the day. I find it has more of an impact if I write it down at the very start of the day rather than planning stuff out weeks in advance. It can also work with time-limited goals. Like I'm going to spend X minutes doing Y before a reward. This approach does not seem to work well if using media and activities to reward yourself rather than some physical pay-off.