The official currency is the Czech crown, locally known as
the Koruna (CZK), which is divided into100 haler. Most credit cards
including American Express, Diners Club, Visa and MasterCard are
accepted, but it is best to have cash handy when travelling away
from Prague and the main tourist centres. Travellers cheques and
foreign currency can be exchanged at banks, bureaux de change and
some hotels; commission is highest in hotels. Banks are closed on
weekends. ATMs (known as 'bankomats') are becoming more common in
Prague and are probably the best way to obtain local currency at a
good rate and without commission. The Czech Republic is still cheap
compared to the rest of Europe, though the gap is closing.