All of the above - 100%. Plus - as a professional of 35 years (and counting), I also learned how to read people very well. When visiting potential customers houses to survey, measure and cost jobs out, I knew within one minute of walking through their front door if they were going to be great to work for - or a total nightmare. A sixth sense, if you want to call it that. I stopped working for those kind of people 30 years ago after a real learning experience with one particular person.
I also learned early that my skills and experience have real value, and if someone won't pay my price, then so be it.
What a great idea for a thread,
@Birdhunter. I'm looking forward to reading more input from other old-timers like us. And since
@Mortiser has already expanded the thread with a joke, it would be great if we exchanged those, too. So here's mine;
Q - "How many roofing contractors does it take to paint a baseboard?"
A - "Six. One guy to paint the baseboard, and five others to dig the trench to stand his ladder in."