The ‘Regrets of the Typical American’ have been analysed in a new study that not only looks at what US citizens regret most, but provides some clues for those wanting to know whether it is better to regret something you haven’t done, or regret something you have.

http://mindhacks.com/2011/03/27/regrets-ive-had-a-few-but-not-too-few-to-mention/