Do you write a minimum number of words each day? I find Write1Sub1 is fantastic for keeping me producing finished short stories each week or month, but giving myself a daily word target is invaluable as well.
Right now, for example, I set myself the target of 500 new words every day. Emphasis on new. Editing stuff I've previously written doesn't count. But the editing part of writing is vital: writing, as we all know, is mostly about rewriting. I think this highlights a problem with the word-count target approach. It's easy to get stressed about hitting that 500 or 1000 or 2000 word target and not finding the time to polish and revise.
That's one reason my daily word target is relatively low right now. I like to allow myself time for polishing what I wrote yesterday before going on to today's new words. But if I was bashing out the first draft of a novel I'd be doing a lot less revising and would set myself a higher daily target. If I was redrafting that novel I might not even set myself a daily new-word count at all.
I think these targets are a matter of finding what works for you at any given time, then sticking to them as best you can. But, also, not beating yourself up if you fall short. If having a target doesn't help, don't have one. If it does, do.
What about you? Do you set yourself a daily word target? Or do you have a different approach?