When I am traveling in very foreign countries:
I have a wallet that I carry under my clothes on my body with my passport, drivers license, spare creditcard some cash, spare bike keys etc.
I have a "normal" wallet with a creditcard, my bank card and some cash and a copy of my drivers license and passport
I have a dummy wallet with €10, some small local currency and some worthless and/or expired cards. If the rob me, I'll try to give them my dummy wallet and hope they leave me alone.
I also leave a copy of my drivers license and passport at home so if everything is lost or stolen, they can fax it to me so I have all the information to go to the police, Dutxch embassy etc.