I only have a checking account in the US and a giro account here. I really need to open a savings account in the US because I have access to my entire life savings (which has dwindled considerably in the last year ) through my check card.
I'm with Doppel on the credit thing; while I have a credit card, I do look at it as sort of another version of my check card in case a place only takes Visa, and just a more annoying version at that. I can't comprehend the idea of buying things on credit when you don't have enough money. I don't see how that seems like a good idea to anyone.
Edit: Besides maybe a house.