Tricks you must master to become a keyboard ninja

Ctr+Shift+T will open all previous tabs in chrome if they get accidentally closed.

And if shit ain't working, [windows key]+'R' opens the run menu. taskmgr.exe opens task manager (very useful), chrome.exe opens chrome (big surprise), firefox.exe=firefox, WINWORD.exe=microsoft word.

It's alt+f4, not ctrl and (windows 7) Windows key + tab looks beter.