[mg85966] Hiding/Restoring Palettes?

[AES <siegman at stanford.edu>]

Adobe Illustrator has a huge set of several dozen info boxes and 
palettes (they're called Windows) and free-standing toolbars that you 
can turn on individually and position around the screen.

Hitting a single key (happens to be the Tab key) hides all of them and 
gives you an unobstructed view of the image you're editing (whatever 
tool you have currently selected still functions); hitting this key 
again toggles them all back on, in the same locations.

Any comparable capability for palettes in Mathematica?

[P.S. -- Adobe Acrobat has a single button at the bottom of each 
document that similarly toggles on and off all the Acrobat toolbars and 
special menu bars with a single keystroke.  Very handy -- Safari could 
use a similar capability.]