The Matrox TripleHead2Go is a great way of getting your PC or laptop to easily use 3 screens for giving more space to work with. It's an external device which you plug in to your VGA output and then you can connect 3 monitors to the TripleHead2Go. The video demonstration below shows what the device is capable of. By using 3 screens on your computer you can get a maximum resolution of 3840—1024 which is huge 
Via: TechEBlog