At one place I worked we went in on a weekend and rearranged all of the cubicles in our work area to better suit our work style and needs. (moved openings, created a central collaboration area, etc) Our boss was ok with it because he said he was responsible for the budget for that floor (including real estate) and if we felt it would make us more productive he was all for it. Unfortunately the corporate bureaucrats got wind of it several months later and came in from HQ (which was 1,000 miles away) and ordered us to put them back in the official standard configuration. They didn't care that our team worked better and was more productive the way we had it. They had official standard configurations and our cubes had to stay that way.