#1 Write Forward.
If you're stuck trying to perfect some diction, a character or a scene, just write forward. Be perfect later. Skip ahead to a section you're dying to reach or a character that's fun to write. Come back to the rest later. It'll make sense then.
Like Jordan, break the ankles of writer's block by juking to another project. I did that yesterday. I'd promised to have Chapter 5 of CA3 done this weekend yet had no idea where to go. I got to work on my “Busy” post. When I got back to CA3, I saw things clearer.