Feet

"The foot is an anatomical structure found in many vertebrates. It is the terminal portion of a limb which bears weight and allows locomotion. In many animals with feet, the foot is a separate organ at the terminal part of the leg made up of one or more segments or bones, generally including claws or nails."

Don't we learn a lot from Wikipedia? (In fact, I learnt that I want claws... I would pick up small furry animals with them and fly away... I may also need wings.)

Most people have two feet, some people have three and some people have wheels (but we don't like to talk about them). However many you have, they're generally quite useful for walking, kicking people in the shins and putting them on coffee tables.