LogMeIn Free

LogMeIn Free gives you remote control of your PC from any other computer with an Internet connection. Simply install LogMeIn on the computer you want to access (it takes about 2 minutes), log into your account from another computer and click the computer you want to control. You'll see its desktop and be able to use all the applications on your remote computer as if you were sitting in front of it - even if you're across town, across the country, or across the world.