Though I favored emacs over vi in college, it was my friend Ian was the one that turned me on to emacs. He's the one that said to me, "emacs isn't just a text editor, it's a way of life." For lent, he gave up emacs.

Anyway, I was hoping to see other things, but they were mostly clicky plugins, rather than little hidden ways to use emacs. What I found to be pretty powerful with emacs are stuff like using search to navigate, instead of the arrows, or replacing a regex across multiple files (albeit it's a long procedure). And even more so, you can edit these behaviors with eLisp if it's not to your liking. However, I wish there was a distribution package for elisp modules, rather than just cutting and pasting them off the web.