Not for the squweemish.....
#1
#2
honestly... what I would do is mix up some warm dawn water in a bucket and take a rag (junk mf, or whatever) and start wiping it down with a little elbow grease. If that doesn't cut it, maybe a little APC/Simple Green/Purple Power etc. in addition to the soapy water might help. That's where i'd start.
#4