I love that this thing can carry passports - and different sizes of currency.  There are multiple slots inside to accommodate cards.  And, there are multiple folds to put different currencies.  Really handy for a recent trip to Asia where I needed different currency for Singapore, Hong Kong, and China!  I really intended it to be used just for my travels...put I haven't changed wallets since I got home I got so accustomed to it!  And, I really like that I can attach it to the inside of whatever purse I am carrying - no chance of accidentally leaving it behind somewhere...