I did post, "SARCASM". We have gone to great lengths to identify savings and act on same. In the US, we buy fuel where it's cheaper or where we can waive landing parking fees. Many FBOs don't charge for small items like ice or coffee when buying fuel, either. We let the lead pax know if a different FBO will save him money for fuel or services. Accounting looks at bills DAILY for "errors" or shenanigans. I'm NOT advocating throwing money away, BUT I'm not telling the Boss his catering is too expensive or no ice because the handler charges $50 for it, no matter how ridiculous it sounds. Once you look at the total cost of operating a corporate jet, the crew can only effect maybe 10% of the total cost. If you reduce it by HALF, you've saved maybe 5% of the bill. Not chump change but optimistic.
If you really want to save, start with fuel planning like the airlines, don't fly at max cruise, but LRC.
GF