There is also a small change shop about 20 yards west of Caribe Express. They guy pays the same rate as Caribe Express. You will see the sign in the street. If there is a large line at Caribe Express this guy is the same. You will recognize him with his bad hairpiece. Honest man, just has a bad wig.
Be careful of the one in downtown Cabarete, Don't exchange for $100 or $50 bills we got stung with an illegal $100 bill from the bank when we exchanged a traveller cheque. So be sure to check your bills if they are larger than a $20 before you leave the bank as they will do nothing about it once you have left the building.