I recently bought one of these after-market lug nut wrenches.

Mr. Lugnut - Lug Wrench
http://www.amazon.com/Mr-Lugnut-4003-Telescoping-Handle/dp/B001RGW7NO
The link above to Amazon is just an example, I got mine locally at the
Kragen store (although they have some different name now).  About $14.95.
http://shop.oreillyauto.com/productdetail.aspx?MfrCode=MRL&MfrPartNumber=304001&CategoryCode=3189
Pep boys and Autozone didn't have any better options.

It is a breaker bar, but has a telescoping handle so it can store in less
space.  And has 4 sizes.  Gave me a lot more confidence than those 4 way
cross bars, and of course stores in much less space.  Comes with a cheapo
carry bag.

The reason I got it was to enable use of wheel locks I got from gowesty.
They have a wheel lock set, but the key for the locking nuts uses a larger
size than the standard vanagon lug nuts.  So I have to carry 2 sizes anyway,
one for regular lug nuts, and one for the key to the wheel locks.  (that is
I am pretty sure I got the wheel locks at gowesty, can't recall exactly,
just looked and I don't see the product listed on their site anymore).

Roland