How to get garlic and onion smell off your hands

I love to cook with garlic and onions but I hate the way they make my hands smell afterward - sometimes for what seems like days!

To get the smell off your hands is simple. As you wash your hands or do the dishes after dinner just rub your hands a few times against the steel sides of your sink. It magically removes the smell.

I'm sure there is a scientific explanation for it but let's just call it magic.