i wasnt going to say anything about this little "how to" but since everyone
else is giving their 5 fingered input i might as well too.  (if someone didnt
already mention this technique)

if you want to get into your own van (notice i said get into YOUR OWN van),
and dont have a key,  the easiest way is to pry out the little plastic sliding
window track guides at the bottom of your sliding windows...you know, the ones
that are probably disentigrated on your van anyway..   theyre like $1 ea from
the dealer new so its no loss.   anyway with these sliding window track
guides out you can push up on the sliding window glass, which jumps the lock up
over the slots in the track that it locks into..  then simply slide the window
back, reach in and lift the lock button.  no damage, no broken glass, you can
still close your window, and youre on your way.

Now if you want to start your vanagon without a key, you just.....   ehh..
maybe that's too much info :<)

chris