Starting doing smth as a whole task.

Sometimes, when a task seems to be too big to be completed fast, it is enough to set a task to start doing smth, e.g. writing huge important report may require several days, so the first day a task may look like "make a draft of report", meaning, that one should only write some skeleton of the report or some main ideas, and then a task for the next day could be "finish the report". At first glance one can think, that it is a postponing of smth important, but it is not true: once you've started some work, you'll be thinking about it in the background mode, if it is not complete (it is smth called Zeigarnik effect). So by doing this you are achieving two goals: you still complete a task (habit is not broken), and you are in process of achieving big goal.