It's been five years since I had a major life change. Five years since I finished grad school, found Drupal, and joined the team at Palantir.net, all within a few months of each other. I've learned far more in the past five years than in the seven before it in college and graduate school, both technically and socially. Having a real job will do that to you.
But, it has been five years and it's time for me to move on before I get too settled and lose all forward momentum in my career.