Communication wise, Gmail has become a huge part of millions of people’s lives in recent years. It’s easy, convenient, and idiot proof — well, almost. Every now and then there comes a moment when we wish we could go back in time and delete a sent email, only to realize that’s the stuff of science fiction. Until now. Thanks to Gmail Labs, you can now immediately undo a sent email in Gmail if you activate their new feature. Simply follow these steps: 1) Go into Gmail and click on the gear icon in the upper right, 2) Click on “Settings”, 3) Click on the “Labs” tab on the top, 4) Scroll down to “Undo Send” and click to enable it, 5) Send yourself a test email and as soon as you click “Send” you will notice the standard confirmation “Your message has been sent” now has an “Undo” option right beside it! Easy breezy, lemon squeezy.