How can someone get the best currency exchange for their foreign currency?

I traveled and came back to the US, with a bunch of currency from Trinidad, Costa Rica and the Dominican Republic. How can I get the best exchange to US Dollars, as close as possible to the going exchange rate? I traveled and came back to the US, with a bunch of currency from Trinidad, Costa Rica and the Dominican Republic. How can I get the best exchange to US Dollars, as close as possible to the going exchange rate? I am exchanging the currency in New York. Also, compared to the listed exchange rates for these currencies, what percentage of the cash can I expect to get back when exchanging? for example, for one of the currencies the rate was approx. 34 units to 1 US$ on a particular day, yet a currency exchange place was offering 41 units to 1 US$. Is this a reasonable difference?

Public Comments

1. Forex has pretty low fees.
2. Unfortunately, the three currencies that you mention aren't exactly high demand. Currency exchanges pay less for them because they are harder to sell. It also depends on where you are - The airport currency exchange in Miami or Orlando would give you a pretty good rate, but the currency exchange at Los Angeles airport probably won't because it's a lot harder for them to sell. Where are you? I would base a specific reply on that information.