you wish you could catch and cancel that email you sent, don't you?

If your answer to the title of this entry is yes or YES or several time yes/YES, then rejoice because now gmail can undo emails. After you send an email with google mail, you have five seconds to change your opinion and cancel sending this mail. It is an inarguably useful feature considering how many times you (I) wish you (I) didn't send "that" email. A job application without a CV attached to it is not that effective isn't it? Yeah I though so...

Notice that it's a labs feature. You have to activate it from there to use it.