If you are planning a trip overseas, the last thing you want to do is exchange your money into that country's currency at the airport's inflated rates. Many banks offer a service to exchange debit or credit card money online for foreign currency.
Log into the website of your bank or another reputable bank website.
Look for a link to foreign currency. As of 2011, the Wells Fargo/Wachovia site link was simply "Get Foreign Curency."
Click on the foreign currency link. Fill in the kind of currency you need, the amount you want, and how you will pay. (Some sites will require a debit card).
Click on the "Convert" button. You will see your exchange rate and the total amount you will receive. Click on "continue" and proceed to checkout. Your purchase will be delivered to you as requested.