Really neat, but....
I like this, a lot.
One thing, though (which I hoped this would do when I read the description): I would like to move over a centered layout to the left or right. If you use this script on this site (userscripts.org), it will squish the content, but keep it in the center (as advertised, I'm cool with that). I would like the left and right side independent to be able to move the newly squished content over to the left. Any ideas?
That might be a really good idea!
Just made some quick modifications but I think this may be what you were looking for: