Money may be changed at the airport, train stations, in banks, in major hotels (but offering poor rates), and in the centre of Prague at numerous exchange offices. Usually, Prague banks charge lower fees (commission around 2 per cent) for currency exchange than bureaux de change and hotels in the city. Before you hand over your money, confirm the exchange rate and commission charges, as once the transaction is proceeding, it is hard to negotiate a reversal of the transaction. If someone approaches you on the street and offers you a good exchange rate, you might get counterfeit notes. We highly recommend Xchange on the corner of Kaprova and Maiselova Streets, where you definitely get the best rate (near the Old Town Square just behind St. Nicholas Church).