Recommendations for good collections of common Deep Wisdom? General or situation specific would be helpful (e.g. all the different standard advice you get while picking your college major, or going through a tough break up).
Check these out.
http://lesswrong.com/lw/gx5/boring_advice_repository/
http://lesswrong.com/lw/i64/repository_repository/
You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.