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Dr. Elizabeth Yuko is a bioethicist and adjunct professor of ethics at Fordham University. She has written for The New York Times, The Washington Post, The Atlantic, Rolling Stone, CNN & Playboy.

Pour vinegar in, run a hot cycle, then sprinkle baking soda and run another—say goodbye to funky smells and gunky residue. Give the drum baffles and rubber seals some love with a toothbrush and soapy ...