Bram Moolenaar who is creator of the Vim gave speech about how to improve your coding experience. He also works at Google in Zurich.

This is very basic but powerful principal he offers:

1. Detect inefficiency
2. Find a quicker way
3. Make it a habit


Google Video
You can download hi-resolution avi version and his keynote here

This is not only about bunch of vim tricks but there are a lot of hints to increase your productivity. Even if you are emacs guy, it's worth to review his presentation.