Sarah Michelle Gellar

'Buffy The Vampire Slayer' star Sarah teaches her kids not to waste food by making them pay for it.

She said: "My daughter was doing this thing lately where she was asking me for a cup of milk and not drinking it. So I told her that every time she'd ask me for a cup of milk and not drink it, I would take a quarter out of her piggy bank. Someone has to pay for that milk."