Portugal official currency is euro. All kinds of pre-paid cards, Atm cards and credit cards are accepted for cash withdrawal, only make sure that the ATM machine is marked with a Cirrus sign, which means it is part of the international circuit. Atm machines are spread everywhere in the city, inside the airports, in all bus, train and underground stations, and they allow the re-charge of travel tickets and cards of the Lisboa Viva membership. Cost of living is generally very cheap in Portugal for a European tourist, hotels and accommodations are quite affordable, and the average cost of a dinner for two in one of the tascas and restaurants ranges between 15 and 20 euro. Gasoline and highways are also quiet cheap for tourists, but not for the Portuguese, who prefer to travel on state roads. This means that highways are not so trafficked as in the rest of Europe. Manufacture products are usually imported, so they may result a little more expensive.
The majority of museums is closed on Monday or Sunday afternoon. Some may stay closed also on the main public holidays. The 18th of May is the international day of museums, therefore all the city museums are open and free. Banks are open Monday to Friday from 8.30 am to 15.00 pm, except for public holidays. Post offices (in Portuguese Correios, recognizable from the CTT sign) are spread everywhere. The headquarter of the Lisbon Central Post office, in Praça do Comércio, is open Monday to Friday from 8.30 am to 18.30 pm, whereas the offices in praça dos Restauradores are open Monday to Friday from 8.00 am to 22.00 pm, and Saturday and Sunday from 9.00 am to 18.00 pm. The post office inside the airport is open all days 24h. Outside the majority of the post offices you can find some automated stamps distributors. Shops are open Monday to Friday from 9.00 am to 13.00 pm, and from 15.00 to 19.00 pm. Saturday from 9.00 am to 13.00, and some stay also open in the afternoon. Shopping centers are open all days from 10.00 am to 24.00 pm
New years Eve and the majority of religious feasts bound to the catholic calendar correspond with those in the main European countries. The Portuguese national festivities are: 25th April: anniversary of the revolution of 1974. 10th June: Portugal celebrates itself and all the Portuguese communities in the world, but this is also the commemorative day of Luis Camões, the greatest Portuguese poet who died on this day in 1580. 5th October: anniversary of the Republic and deposition of the last king, in 1910. 1st December: Independence day for Spain and Portugal (1640). On the occasion of these public holidays all shops and offices are closed, with the exception of restaurants and hotels.