How to say goodbye to 2020? What about: good riddance. Scram. Take a powder. Don't let the door hit you where the dog bit you. In fact, we don't just want to say it. We want to do something about it. What's needed is an exorcism, a cleansing. And that's where New Year's rituals can help. "It's a way to purge yourself of something that's painful, removing something from yourself," said Lisa Lyons, a Teaneck psychologist. Some years pass like a beloved grandmother, leaving cherished memories behind. Others are more like a hated houseguest — one that constantly raids the icebox, smokes in the bedroom, wrecks the family car, and tells inappropriate jokes to the children. We don't just want them out of the house. We want to fumigate it afterwards.