Nothing quite says "class" like than a card with a tired one-joke cartoon cat.
Warren: I say, Margaret. Let's invite Bob up the Hamptons this autumn, shall we?
Margaret: Surely you jest. He's ever so common.
Warren: But look at this delightful birthday card he sent me. This feline detests Mondays and can't stop ingesting some dish called "lasagna!"
Margaret: How droll.