Is there any keyboard shortcut to Force Quit all applications? Is there any apple Keyboard Shortcut to force quitting all of my applications?

I really need this sometimes because i have a old MacBook Air and it freezes if I put more than 14 applications. I just want to ask if there are any KeyBoard shortcuts to force quitting all of the applications using the Apple KeyBoard?
You could do it with a script... or you could hit CMD+Tab and while holding CMD hit "q" over and over. It will cycle through your apps and quit them one by one pretty quickly.