I compare writing to a good soup.
It sort of takes a bit here and there, I may find the meat of the story and sit on it for a month, and the veggies and spices somewhere else. I may not even cook it until a week before I begin writing it. Other times, I can find the ingredients and heat to make one in less than an hour. I have churned out some before that were conceived barely a few minutes before I started writing them, but those sorts of stories are rare, few, and far between.
but the days in which I handwrite more than 5 pages or so are few and far between. I ran the gauntlet of Black Friday shopping at Wal*mart and spent the entire time writing--I got about 10 pages in between the hours of 11pm and 5am, but only because there was nothing else to do and I was in a creative mood. On a normal day I may get no writing done. Other days I may do 3-5 pages of a half-baked story. Sometimes I may skip handwriting and simply type it up because I have a full story and it'll be faster than handwriting it all out. It just depends--but creativity definitely waxes and wanes. I am, however, almost always writing some sort of section of a story or idea or figment of a thought into a small notebook I keep in the outermost pocket of my purse.
My muse, he is a fickle hobo addicted to caffeine and dried meat.
I will say that often times those stories I pound out in a matter of hours, I save in my google docs folder for a month or two until I'm no longer super-attached to how it looks so I can edit it without being sentimental. Well I do that with most stories I've "finished" so I can dig them up later, edit them somewhat, and post them online. I'm still not published anywhere : P