Ever sent an email and you've noticed that it was really bad and you wish you never sent it? Well the answer is here!
A clever Tokyo Google engineer named Yuzo Fujishima has come up with an option that you can enable within your Gmail account that allows you to "Undo" the sending of an email - just incase you've accidentally sent it with a subject line like "Your Momma Sucks!" just as a joke and then accidentally hit the Send button.
The way it works is simple... when enabled, every email you send through your Gmail account (I don't think this works with email clients like Outlook or Thunderbird though) gets put in a 5 second "holding queue", which then gives your 5 seconds to "Undo" the sending of that email, should you need to.
This obviously doesn't solve the horrid nightmare of the overnight drunken emails that you may send your boss or to the secretary, but it's a step closer to it.
To use this feature, you need to have a Gmail account (which is free) and just follow the link below. It's as simple as that.