With the help of a Google Chrome extension called Internet Shame Insurance, you can avoid doing things online that might really embarrass you. According to Gizmodo, the extension "adds privacy reminders to Facebook, Twitter, and Gmail to help you avoid the most common online communication faux pas. The extension sits in the background and springs into action only when you're about to post a status update or reply all." It even pops up when you're about to hit reply all on an email!