conversation: User (dragon2611): "Just wondering what other people would do, I tend to like to carry at least 2 credit cards with me just incase one get's declined (I've had cards blocked by the provider because something tripped their fraud monitoring systems before)  But recently I've been thinking what would happen if I lost my wallet.  Cancelling the cards is easy enough but then you're left without for a few days while replacement's get sent.\n\nI know some banks will do emergency cash if that happens but they'll presumably want you to produce ID which lets face it is most likely to be in the wallet\n\nDo most people keep a spare credit/debt card elsewhere just in case?"
  Self: "I keep cash for emergencies, but also, AMEX has always sent me a new card, delivered early the next morning, world-wide, at their expense whenever anything has compromised my current card. That level of service gives me incredible peace of mind. "
  technotrader (technotrader): "Agree on Amex being an awesome card. It's saved the day more than once when my and my entire entourage's other cards were declined!\n\nSadly, it's a bad option in the Caribbean and Mexico: most places don't accept it."
  