Foreigners living in large cities in Cambodia have the distinct advantage of using US dollars to pay for most goods and services (for now). Americans especially will appreciate being able to withdraw funds from their US bank accounts without having to ponder the classic currency exchange question of the ages — do you withdraw in local currency or USD?
However, the lack of currency import and export controls, and other relatively loose financial regulation, leaves several traps for the unwary, and can lead to expensive and embarrassing transactions. This is not a new problem, but one that seems to bubble up especially around major holidays and during tourist season. Here are some classic Cambodia currency traps:

Ripped, torn, or worn: These US dollars were all rejected in Cambodia.