An experiment
For the next little while I'm going to try something new. I've been thinking a lot about Squaring the circle: you can control quality or time but not both. For regular habits, like my writing here, I need to be willing to control time at the expense of quality. So what I'll be doing is giving myself 30 minutes to write. I can plan and outline first, no problem, but once I start writing it's a 30 minute clock and I put up whatever's done by the end.
I'll probably relax the time restriction to 1 hour later, but I think 30 minutes is a good place to start.