When Will They Invent an "Unsend" Button for Email?

About a month ago, I read a great post on the New York Times's Freakonomics blog about the worst email mistakes people have made. Seriously, haven't you ever hit "send" and immediately wished you could take it back, for whatever reason?

Maybe you saw a typo in the split second that the email system was processing. Maybe you wrote the missive in a fit of anger, and belatedly realized that it needed a re-write or several in order to be considered anywhere near diplomatic. Or maybe, in that moment the email was still on your screen, before it flew out into the ether, you saw that you had addressed it to the person you were writing about instead of the person you were writing to... [More]

Want to know about some of the ones that made me long for an "unsend" button? Read the rest at The 36-Hour Day, and be sure to share your own email mistakes (and your tips for avoiding them) in the comments!