That is one impressive list! I'm just a windsheild watcher. I have no idea what goes into the companies per hour they charge customers.. I know it's not just my salary.
On that tank I installed last week, the customer tried to get me and the other guy to think that since he was being charged x, that we must be making y. We couldn't stop laughing at the poor guy. He then kicked us out of his house for insulting him. I guess... It was funny though..
Off of you list I noticed there is shrinkage.. Is there really shrinkage? -Ha!