What I would like to do is get a comparison of my current ubuntu installation against a fresh version (probably a listing of all files changed/added/removed). I made the mistake of not documenting well enough when I was making small tweaks and now I would like to change VPS providers without rediscovering all of those tweaks that make the system run. Additionally, I would like to document these changes, so just copying everything wouldn't really solve my problem.
Is this possible with any current tools?