Guatemala Guide
Money
Guatemala's currency, the quetzal (Q), has been very stable for over a decade. The US dollar is by far the most widely accepted foreign currency in Guatemala; that said, it is not a semi-official one, and you can't get by with a fistful of greenbacks and no quetzals. Euros and other foreign currencies are tricky to cash; try foreign-owned hotels or stores.
Debit and credit cards are very useful for withdrawing currency from bank ATMs but are not widely accepted elsewhere, so don't count on paying with them except in upmarket hotels and restaurants.