Removal of Garlic Odour from Fingers

In my classes, I often tell people to rub their hands on their dry stainless sink to remove odours. This works for garlic, fish and onions as these products contain sulphur which is attracted to and binds with one of the components of stainless steel. Why buy a fancy cookware 'stainless steel soap' when you have a stainless steel sink? But do not use the blades of your stainless steel knives (that is a cutting remark!)