Boise Ed sends this in: “Today (Saturday) is the sixth straight day he’s used the exact same art. I’ve seen such re-use in other strips, but geez, six straight days?”
That one’s the start of the series. As I post this, I don’t know whether it continues further (or whether Brett has used this in past years).
Comics I Don't Understand 
Don’t tell Boise Ed about Dinosaur Comics https://www.qwantz.com/
This setup with the fall leaves was a staple of Funky Winkerbean in the 70s and 80s, and I’m sure it doesn’t originate there. Tom Batiuk did usually redraw each panel in those Funky strips, though.
Work smarter, not harder!
Dinosaur Comics? Oh, good grief! B:y the way, that Diamond Lil contued one more day with the same art.
Brett Koth was a protege of Jim Davis and it’s amazing how similar the art looks even today.
Powers (5): Mr. Google tells me “Brett Koth is known for </>The Garfield Movie (2024).” I find it hard to believe that’s the same artist as does Diamond Lil.