I'm a hummingbird quilter. I do a little here, a little there, zip over there... That way it never gets dull and if I get frustrated I can just switch to something different without really losing my stride.
I do a lot at once, so at any given moment I might have anywhere from 2 to a dozen things in progress, but nothing sits for very long and everything gets finished eventually. Right now I probably have ....oh at least 10 quilts in progress, but the oldest (most neglected) is just now getting to be about a year old. I have a few baby things I need to make by end of summer, and also a wedding quilt due in August that I've barely started (eep), and some Christmas gifts are in that list, so that year-old project is probably going to get close to 2 years old by the time I finish it. (It's a stack & whack, those take me FOREVER.)