Taming the Wild Lion

Sorry folks this is the Lion OS X software and not the African feline.

Using the "Previews" application has been a frustration because it keep accumulating files under the "Windows" tab (next to Help).  The long list just never seemed to go away. I could re-start the machine, or even turn off the box.  The files stuck under Window in Previews had ever-lasting life.

Finally, I found a long blog where other unhappy Lion-users expressed their dismay.  Boy, criticizing a feature offered by one of Apple's engineers is likely to generating fiery commentary.  Well, how did I get there? Try Googling  "preview os x retains old files window".

Here's a solution: 
Close Preview stroking the keyboard Cmd+Option+W
   For the visually challenged that is ⌘+⌥+W

That flushes the open files out of the program.  The next time Preview opens the list under Window will be clean.  This works when closing other applications too.

Viola!
  Ciao!