Since the conclusion of Calvin and Hobbes, Watterson has taken up painting, at one point drawing landscapes of the woods with his father.
He will not sign autographs or license his characters, staying true to his stated principles. In previous years, he was known to sneak autographed copies of his books onto the shelves of the Fireside Bookshop, a family-owned bookstore in his home of Chagrin Falls, Ohio. However, after discovering that some people were selling the autographed books online for high prices, he ended this practice as well.