Hello Bob,
this is the qoute from the article:
"Some of these steps may seem familiar; and that's a good thing if they do, because it means you're up to speed on the essentials. But even experts sometimes miss a step, so having a checklist or guide like this can be handy."
I've always talked that making of checklist (like a reminder) is the best thing to do in order to stop youself from forgeting the facts you are dealing with. Ohh, but no, most of the people in this filed are "professionals" and they don't need such trivial annoyance!
Stick to the basics and they will stick out for you!
Thanks Bob, Zagor