I've been thinking about this myself. We have a one year old now and when he was small enough to fit in an infant carrier it had a stacker with his name, doctors name, relatives names, etc in case something were to happen to us such as an auto accident. Now that he has moved to a seat we don't have that sticker with his emergency contact info. Since he and his pockets are too small for a wallet I don't know where to put his information. I've thought about something like a luggage tag attached to his clothing but would have to be something he can't remove easily. Suggestions?