“Serenity Now!” The airing of grievances during the made-up holiday Festivus has become a staple for “Seinfeld” fans. “If you watch the show, you will inevitably find yourself frequently ...

Even amid his enraged screams of “Serenity now!” Frank Costanza and his wife, Estelle, have managed to let their money relax (to paraphrase Jerry Seinfeld’s stand-up closer in “The Stock ...