A mirror and heat vision. (Seriously - in the comics anyway)How do Kryptonians manage personal grooming on Earth, anyway, if their hair and nails aren't made of keratin? Do their hair and nails grow? Let's assume that they must. What does Supergirl do if she decides she needs a brazilian? How does she shave her legs? How does Superman shave and get his hair cut? Perhaps there is some established canon that answers these questions...
