+1 to Citi credit cards
I got a new credit card in the mail today - unexpectedly. It was to replace a still-active card I have. Citi had registered my card being used (by me) at a store, hotel or restaurant (not sure which) which is known to have had their customer merchant database stolen. So Citi closed my old card and account to prevent potential fraud, and opened a new one with a new number automatically. Nice one.