The trick to attaining “work life balance” is to do something you love for work.
Be passionate about it. Make work part of your life with your family and friends. Get them involved with what you do so they can share your life with you.
One of the plus sides of this is a huge increase in productivity. You will have access to your work/passion at 2am when you dream of a fantastic way of doing something you can get up and do it. In a normal work environment it is ludicrous to consider doing this but when you are passionate about work this is a fantastic positive. You can talk, brainstorm, strategize with your peers all day or night about the best way to create, inspire and achieve your goals. Build a community of colleagues, friends and family who are invested in what you are doing because they are invested in you as a person.
Blur the boundaries between work and play.
Life is better that way.