The Done Manifesto with 13 principles of getting to done has been circulated since 2009 (and recently reprinted in LifeHacker). It was made into a poster and creatively illustrated with Rubik's cubes.
Of course, there is a 14th principle that could also be considered--I remember this from a poster that I first saw in the local newspaper and candy store in Riverdale--it was illustrated with a little boy on a toilet and a roll of toilet tissue and had a caption that said "No Job is Finished Until The Paperwork is Done." ;-)