And, just to know (as I don't want to create another thread), is an AMEX card any useful over there?
I've used my AMEX card for hotels, purchasing train tickets (at ticket offices), eating at some resturants. If I recall AMEX cards are processed through JCB systems (I remember reading that they have a reciprical agreement or somthing, correct me if I am wrong).
AMEX has a program where one can transfer their card to another country and I think it would be better to get a Japanese card if I can (provided it will be useful).
I never heard of this program? Do you have more information?
Its hard getting a Japanese credit card, its different from the US where your pet lizzard can get a platium card. I've known people who have no luck at banks but a little luck getting a Visa branded debit/credit card at a department store tied to their postal savings account. YMMV.