I just finished a wiki page with best practices i found (in our german forum, and doing self intersection fixes). You can find it here:
(It is in german and english language)
Feel free to use the discussion page to improve the practices or to add new practices, or add the practices you are using.
Comment from SB79 on 24 June 2011 at 13:01
thank you for this great documentation of ways how to fix self intersection issues. Keep up the good work! Stephan