Although they are more geared for getting yourself to write, the "50 Strategies for Making Yourself Work" is a pretty good document that I found via this post on 43 Folders. Also on the post is the author of 43 Folders "Hack Your Way Out of Writer's Block" that has even more ideas.
Not everything will work for you: maybe some of the ideas will work, maybe none of the ideas will work. The idea is to pick and gather what works for you and what doesn't. If nothing in the 2 documents above works for you, maybe the sheer overwhelming amount of things that don't work will trigger a whole list of things that do work. The great part about the internet is that you can find an overwhelming list of things that work (or don't work) for others and pick and choose what works for you.
Good luck and happy working!