Now that my book is done, I have a looooong "to do" list of all the various and sundry things that need to be done around the house.
I always notice the difference between that sort of work and writing.
Let's say on the list I have (as I do), "Clean windows." After I've cleaned the windows, I can check that off the list. It's finished. I don't have to think about it any more. I never think "Oh, gee, I wonder if I should have used a different glass cleaner. Maybe another kind of rag. Did I miss that tricky little spot in the upper right corner? Are there streaks I'm not seeing? What will the neighbors think?"
When I'm writing a book, however, I never really feel anything is completely finished. I can't simply put a check beside something like "revise Chapter Seven." I'm always wondering if I should have done something differently. Did I choose the right series of events in the right order? Have I made the conflicts clear? Are my characters understandable and well motivated? Will some reviewer think the story stinks?
That's why it's actually kind of enjoyable to have jobs to do like "clean the windows" and "organize Christmas wrapping paper into new storage containers" (which I did yesterday).
Not necessarily as much fun as writing, but it's nice to be able to check things off a list because they are done.