This is a short summary of how to permanently delete your Facebook account, meant for experienced users. However, I strongly recommend everyone to read through the full instructions.
Ok, let's go...
1. Log in to Facebook.
and follow the instructions.
3. Make sure you have no contact WHATSOEVER with Facebook for at least 2 weeks. For more details on this, read Part C of the full instructions.
4. Enjoy a Facebook free life. :)