As a direct result of sending a few misjudged emails himself, Google engineer Jon Perlow has developed a fun application to work alongside Google mail. Designed specifically to prevent mail users sending mails when drunk or tired, the application allows users to set times when the application will come into play (Say 11pm to 4am on a friday and saturday night!)

By presenting the user with a few maths questions to a stopclock, Mail Goggles makes the user prove their sobriety before allowing you to access your inbox. This, im sure will save a few late night embarrassing emails!