Just when you thought Google couldn’t get any more useful (or pervasive), engineers at Google Labs have launched Mail Goggles, a Gmail feature designed to prevent you from sending drunken emails you may regret in the morning. Here’s how it works: When the feature is enabled, Mail Goggles will ask you a series of basic timed math problems to see if you’re functional enough to know what you’re typing. If you pass, your message will be sent. If you fail, it’s probably best to wait until morning to write to your ex (or mother or boss).
To activate Mail Goggles in Gmail, go to the settings, click on "labs" on the right-hand side, and scroll down to find it. The default active time frame for the feature is late at night on weekends, but you can tailor it to your specific needs; say, if you tend to go overboard on the Bloody Marys during brunch, or if you plan on playing one of several drinking games designed for the presidential debates.