An article over at TMCnet talks about businesses trying to help workers balance lives.
Work/Live balance is not only important for the workers but for the employers. You've got to keep your staff happy and healthy to keep driving the business.
Here is a relatively funny article I saw on washingtonpost.com on how to "Avoid the Pitfalls of Working From Home"... The only one I seem to have an occasional problem with is #6 "Maintaining a Healthy Balance". I have a tendency to stop into my office and check email at all times of the day. I also will find myself working at night if I have nothing to do. For some reason in my head, I like to try to get ahead of my work, but realistically no matter what I do I'll still have plenty to do the next day. I've definitely have gotten better at my constant need to check my smartphone, now I just need to install a timed lock on my home office door.