Switching between Apps, and Windows within Apps

Most PC users are aware of ALT+TAB to switch between applications in Windows. Apple has included a similar feature in OSX whereby holding Command (the 'Apple key') and pressing tab will cycle between applications, in a similar way to ALT+TAB in Windows (just much prettier!).

A similar function many users don't know about is the ability to cycle between windows within the SAME application in a similar manner. For example, between 2+ documents open in MS Word. This is accomplished by holding Command and pressing the ` key to cycle through the various windows. Really handy when you are constantly shifting from one document to another on a small screen!