Mel Cooley enters the writers' room and stands holding his glasses in his hand. In a cut to a close-up he is wearing his glasses.
Near the end, when Janie appears after being treated for a cut on her head, there's a big, white bandage on *top* of her hair--hair that's easily two inches high.
At the very end, Janie and her parents leave her satchel and schoolbooks on the Petries' kitchen table, as they walk out of the kitchen to go home.