InternetOff allows you to quickly turn your internet connection on and off from the systray.
This tool is a handy way to disconnect from the internet for work purposes or simply to not be bothered by social media, email, etc. Yes, you can manually disconnect but this offers a slick in the background option for doing it with minimal clicks. You can also set a time limit for how long the connection will stay active, 5, 15, 30, and 60 mins are available.
InternetOff also offers the option to password protect - making sure that when you are offline no one can reconnect you - may also be useful if you have kids in the house and want to limit their time online.