My sister-in-law is a fast moving, busy woman. When it comes to her home she tears through it in a whirlwind of work, doing one of her many projects, throwing things here or there and never cleaning until she blows through in a whirlwind of picking up. I, however, clean while I go. This causes The Engineer much distress as I have a tendency to clean up the tools he's still using.
I can't help it, it's habit.
Now, this is not to say my house is perfectly clean. I have clutter spots where I dump stuff I don't want to deal with. Also I have two kids. This may be one reason I've adopted this style of cleaning. There's no possibility of a large block of cleaning time so I clean here and there while I go.
I'm like that in my writing too. While I have participated in, and won, NaNo, in general I tend to revise as I go. Again, this is not to say my first drafts are perfect. There are things I don't want to deal with and I put it off until later drafts. I'm a chunky pants writer. I don't write linearly, and I don't plot, so I find I do a bit of editing as I put all the parts together.
This works for me. It fits my style and it keeps the thoughts flowing, though I'm sure there are as many ways of doing it as there are writers. How about you? Do you tend to tear through a first draft leaving all the clean up until later, or do you try to tidy while you go?