In the past (before Unity), it was possible to use my entire desktop without any menus whatsoever.
I used a quick launch app to run my programs and used some of the nice compiz windows managers to cycle between my windows. Now I'm kinda stuck with the menu at the top and unity at the left (which I can autohide, but this messes things up with two monitors side by side).
There are hacks and utilities to make them disappear, but what would be the least intrusive way? I can't afford for my Ubuntu to become unstable.