"Other people's books are the greatest teachers of writers."
Because I visit 1,245,677 schools a year, I keep records to help me remember them. (I usually return to the same schools each year when working locally).
I make notes about everything from weird parking issues to equipment needs to reminders to stay away from the chicken nuggets on Wednesdays.
I was recently going through my records from past years and came across this one:
"Parent volunteer brought me a sandwich. Teacher with a hyphenated name was fantastic."
(Goes to show you how much that sandwich must have meant to me. Heh...)