François La Roche emails a nice little tip for quickly quitting an open app that was news to me.

As everybody know, you can cycle through your open apps by hitting ⌘-Tab. What you might not know (I didn’t), is the ⌘-Tab feature has another trick up its sleeve.

You can also close open apps by keeping the
⌘ key pressed and then hitting the “Q” key while cycling over the application you want to close:

François reports that it seems to works with all apps, although not if the app needs to do something before closing like saving a file.

Thanks, François!