How this happened to me:
So Thursday I'd tweeted that I wasn't doing it, and as soon as I did that, it started to nag at me. And Friday, I was sitting in the lab and the computer was really slow, and I had scrap paper, so I started calculating... 50,000 words, 30 days.
That's only 1667 words per day. Or 12,500 per week.
So, if I did 5000 words each weekend day, that would mean I only had to do 500 words on each weekday, and I'd have two weekdays off in case I fell ill or disaster struck. I'll be fine.
Right now, I have 6506 words, because I started at 12:01 am and did two thousand words before I went to bed. This evening, I wrote an outline of sorts. That counts as words, it does, because I'll be fleshing them out later. So I want to get up to 7000 words, then I can do some yoga, and finish that sock heel, and maybe read some of that book, and go to bed!