Cash / Credit Cards
2011: For the first time in the 20+ years we have been visiting Costa Rica, some places are not accepting dollar bills. The value of the dollar is depreciating too quickly. In the past 18 months the exchange rate has dropped from almost 600/1 to just under 500/1.
Cash: You are better off getting colones than trying to use dollars right now.
Credit cards: 75% of places accept credit/debit cards but check first. All US cardsw work here but let your bank know you’ll be traveling or they may put a hold on it when they see international transactions.
Travelers Checks: No one takes them.
ATM: US credit/debit cards work at almost any ATM in the country.