Networking. We talk a lot about it, how important it is, how it will help your career. Blah, blah, blah.
One thing that is not often stated is what happens on the back end. The chapter that starts, 'Years later...'. Tess put up a great post about this part of networking, and if it doesn't change your behaviors regarding thanking those who helped you up the stairs, you're close to hopeless.