[Protoclown]

Sometimes it helps to step away from it entirely for a while, other times it may be best to force yourself to write SOMETHING. But you could always do a combination of the two...step away from whatever you're working on, but write something else you don't really care about as much. It'll get the words flowing, and you may find yourself coming up with ideas for the initial project more easily.

Of course, this really only amounts to anything if you actually have a project you definitely want to do in the first place.