The breaker bar with 17mm socket is the ultimate take-along lug wrench, as far as I'm concerned.
My spare is still in my garage because I can't get the jack thing figured out. My floor jack weighs 150# and is five feet long. All the reviews I see on the "portable" floor jacks w/ case indicate they are a POS. I guess I'm going to get an old 5-series jack Y jack from EBay and hope for the best when I actually have to use it.