The next episode of Becoming a Jedi is now live and covers code cleanup. Specifically I look at quick fixes, context actions, safe delete, and reformat code. You can find it here:

Streaming: Becoming a Jedi - Part 2: Code Cleanup (requires Silverlight 1.0 or higher)*

Download: Becoming a Jedi - Part 2: Code Cleanup (via Live SkyDrive)

Enjoy!