Simonides of Cleos is reputed to be the first to discover that a seating pattern helps you remember things. I was using his method to remember where my koi were in the latest koi picture. I was making an idle drawing while sitting through a slightly tedious lecture and used the time to review the painting I had been working on the night prior.
Strangely enough I had quite a difficult time accounting for all the fish graphically, by remembering their shapes. And so it was the “seating pattern” at last the filled in some of the blanks. I didn’t get them all, but I got most.