>>> " just use our debit cards? "
---- When traveling out of the country would not use a DEBIT card except at a bank's ATM. If someone were to get your number they could use it to drain your checking account. Yes you protest and you get your $$ back but how many days and phone calls does that take. Would only use a credit card.
I use US$$, a credit card, and American Express Travel Checks.
Get the very new US$$. Don't be surprised to see shop merchants or Casino people in Aruba hold big bills up to a light to see the watermarks.