Better yet, tell someone else when it will be done. Find a way to divide the task into small pieces. The prize might be calling a friend or spending a weekend away. Finally, convince yourself that choosing the easy way out and avoiding unpleasant tasks is detrimental to your ability to achieve the goals you have set for your survival or your happiness. If your procrastination problem stems primarily from postpoing difficult tasks, then your approach needs to be slightly different.
Difficult tasks feel overwhelming.
Either we are afraid we cannot do them, or we simply cannot think how to get started. Start with your deadline and work backwards from there. To be done on a certain date, think about where you need to be in the task during the week before, and after that, and so on. Write out all the separate tasks that are a part of the project. Working on the whole project may feel overwhleming, while completing a one-hour task is simple.