What’s the key to a successful marriage? I’ve wondered about this for almost as long as I’ve been alive. And since I’ve been married for three years now finding the answer to this million dollar question is even more important. And here’s what I’ve realized thus far. There is no simple answer to this question. My entire life I’ve had one example of a successful marriage, my grandparents. As of last month they have been married 60 years, raised four kids, my grandfather retired from the military and then did night school in order to start a new career as an Electrician, all while my grandmother raised their four kids…