This month I decided to go from 500 words a day to 750 words a day. So far so good. It makes me stretch just a little. Maybe I'll go to 1k/day in December.
It sort of cuts down on the odd hobby stuff. I still do crafts and whatnot, but I can only do what I can do in addition to family and writing. I'm generally happy with that choice: at the least, I'm producing art every day. Seems like wordcount alone isn't enough: I have a tendency, I think, to drag out projects without a deadline. My current project always has something else wrong with it that needs to be fixed. But more writing certainly helps.