Moving as metaphor
A few weeks ago, I and several others helped some friends of ours pack up their apartment into a truck in preparation for moving cross-country from Chicago to New York. It was, as such moments generally are, bitter sweet. It's always a good feeling to help out a friend, but when you're helping them get further away from you it's not as pleasant.
Of course, me being me, what struck me most about the whole process was how well it served as a model for software development and project management in general.