Whether you are chopping onions, mincing garlic, or other type of food that makes your hands have an odor. The quickest way to rid this pungent smell is with used coffee grounds! Scrub your skin before washing with soap and water. The granules will absorb the strong odors and, bonus, remove dead skin cells too leaving your hands softer. So if you’re planning some smelly chopping or dicing, save the grounds from your morning brew to clean your hands.