Clean code talks

Below are four fantastic talks (~30 min each + Q&A) on clean code and unit testing. I wish I came across them a few years ago when I was first starting out unit testing -- would have saved me so much pain.

http://www.youtube.com/results?search_type=&search_query=clean+code+talks+misko

If you're a developer with a few years down your belt, you should know why:

• if statements are bad
  
• new statements are generally bad
• singletons are an anti-pattern
  
• service locators were the pre-cursor to dependency injection

If not, watch the talks and you will feel much smarter!