I enjoyed your article. It was brief but full of good information! I have hatched many of my own eggs successfully.
Did you know that you can even store eggs in the refrigerator while you wait to collect enough?
You just need to let them "warm up" to room temperature before putting them in the incubator or giving them to a broody hen.
It may have been a good idea to address washing/not washing eggs that you plan to hatch. I think that is something that many may do wrong.
I have never tried to hatch shipped eggs yet, but from what I have heard/read about it, you gave very good, sound advice!