Whenever you cut/mince garlic, what can you use to get the smell off of your fingers?

I heard that you use lemon juice to get the garlic smell off of your fingers.. is that true? I love to cook and I love garlic... I've just been avoiding fresh garlic because I'm not sure if it leaves a strong smell on your hands or not. Also what is the best way to keep it fresh, and how do you know if it's bad?