I quit my job, which I don't recommend by the way for the most obvious reasons. So its something I cannot answer at the moment. Now when I was working though I was spending all my free time developing websites, and blogging.
To focus on a single thing at a time works wonders, now if you have kids which many hubbers do, it may appear to be impossible, but I think time management also works wonders.
Maybe set a schedule in place for the writing of hubs & the editing as well as proof reading process. If there's a will there is also a way.