toggling preview pane?

Hello all,

a quick question.....

I really like the new preview pane in explorer, but there is one MAJOR
problem with it - *ease of use*

i dont want to leave it on all the time, and only to have it when i want it.
But to get it on takes a full three mouse actions... WAY too much, then to
turn it off again, aNOTHER three... for a total of 6!

Is there any kind of keyboard shortcut to toggle the preview pane on and
off?? CTRL-W or something like that?
and while were at it, how about toggling the Folders pane? This used to be
one toolbar button click, now, its the same six mouse actions!

Not exactly congruent with the "smoother user experience" that Vista is
supposed to provide.

Thanks in advance,
- Arthur Dent.