Never carry your social security card with you, for any reason. It should be kept in a safe, secure place, hidden from an obvious place where a burglar might find it. Also, only carry a minimum number of credit cards with you at any time. Cancel and destroy the cards that you do not use or need. Keep a list of the customer service numbers for each of your cards and the account numbers in your house, in case you do lose your purse or wallet, so that you may immediately cancel these cards if anything should happen.