Excellent post. All resonate, but I find that this rings particularly true:

: Seventh, and last, when you are done with a deal forget about the
: deal part and enjoy, live with, or get rid of the watch. Move on
: and learn from your successes and mistakes. If you make a
: mistake and have to get rid of it don't try to get your money
: back by being as dishonest as the bum you did the deal with in
: the first place.