太多了。而且每张都有用。

Citi dividend - cash back

Citi Primere Pass - air tickets

Discover - used for seasonal 5% cash back various at restaurants, fashion, office supplies,etc.

Amex - used at costco

Mbna - pay other credit cards

Macy's

Sears　（被骗开了两张）

Gap

Amazon

And my University Union Credit card, since it is my first one，I can not cancel it even if I don't use it.

还有一些不记得是什么也找不到了卡。记得上次查信用记录说我有１７个开户的信用卡，这可能包括我以前关闭的过的一些卡。