Agreed. I also find that my balance between work and home and social relationships enhances the happiness in my life. When something goes really well at work, people around me may care, or get jealous, depending on how secure or successful they are at the time. At home however, or with my brother, or extended family it's always nice to know that I can share with someone disconnected from my occupation and have them genuinely say, "Cool to hear that things are going well for you right now."
Also, I find that, especially after we had kids, my wife and I found a far greater success with leaving work frustrations at work and seeing those frustrations as smaller and more compartmentalized. Heck, I also find that taking a break from obsessing with work allows me to have the perspective that has allowed for me to recognize my greatest solutions to problems I'm facing at work.