Money: The unit of currency is the Tunisian dinar (TND), divided into 1000 millimes. American Express, Visa and Thomas Cook travellers cheques are widely accepted, and it is best to carry them in US Dollars to avoid high exchange charges. ATMs are found in most towns and at all the tourist resorts; almost all will accept Visa cards and many will also accept Maestro (Switch) cards. Visa and MasterCard are accepted for payment in souvenir shops, upmarket hotels and restaurants, although Visa encounters fewer problems.