Is there any way to automatically limit the amount of time my teen son spends on the computer?
The Online Family Answers:
Software such as ENUFF PC or TeenTimer Software does allow you to control how long your kids use the computer. Or, gadgets such as the WebGuard Programmable Internet Timer connect to your computer and shut it off based on your settings. Also, try searching the web for "computer timer, parental controls" to find more options.