Have you ever wished your computer would keep track of your comings and goings and secure itself accordingly? Odds are good that if you have a newer laptop and cell phone you can do just that. Many laptops now come with Bluetooth chips and most phones now support Bluetooth as well. This can allow your computer and cell phone to "talk" and create a simple proximity badge for you to use. There are many other fun things you can do with a link between your laptop and your phone but for now well just cover how to setup the connection between the two and then have your laptop lock itself when youre away.