Once, my boss told me that I needed to learn how to flip the switch between personal life and my job. I came to a point where I was thinking about work at home and vice versa.

Regarding taking the time off, I am lucky that my boss is also a family man and it is not hard to beg off from work from time to time. These days it is mostly because I need to tend to the needs of my children, hopefully in the future it would be for rest and relaxation already! :D