Write or die mode
Write-or-die mode is an emacs mode that "makes" you keep writing or it erases text. I find that it's good for my writing. I have a tendency to get very bogged down in polishing what I write, to the detriment of the writing. Write-or-die mode doesn't let me do that.
I'm actually writing this mini-essay to test out my configuration of write-or-die mode on a different system. So far, so good.