Use your keyboard & mouse to control multiple machines
You probably know this scenario: You have a laptop and sometimes you would like to have two or more screens but the luxury of just one keyboard and mouse. One screen you would like to use for your browser, one screen for your currently active program and maybe even one to keep an eye on your e-mail program. But you don’t want to buy a second or third screen. This problem is easily solved with with for example two laptops and a small program called QuickSynergy. With this program you can use the keyboard and mouse of one machine to control the others. You can position the client for example left of the server (the machine you want to use the keyboard and mouse on). In my case I created a client on an HP net-book that is on the “left” of my own laptop (“server”). This way when my mouse leaves the screen on the left it will appear in the screen of the net-book. Both machines run in my case on Ubuntu 10.10. Check the tutorial on wiki pages of ubuntu: QuickSynergy