Consult your local Turkish consulate for visa purposes.  Visa requirements vary depending on your country of residence.

Almost 90% of shops and restaurants accept major credit cards like Visa or Mastercard.  However be sure to carry a small amount of cash with you.  You can exchange your money to YTL at banks or at foreign exchange offices.   You can also convert your travellers' cheques at banks.

Public telephones have 3 different payment methods, tokens (jeton in Turkish), phone cards and credit cards.  Phone cards and tokens can be bought from the PTT Offices.

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When visiting a mosque, be sure to respect the traditions, dress modestly and take off your shoes before entering.

The famous alholic drink of Turkey, raki, can be found almost everywhere.  Remember that raki has 45% alcohol and don't drink raki as you drink beer.

Antique pieces are not allowed out of Turkey, this is a crime.

Smoking is not permitted in flights and all public places.

Hospitality is a tradition of Turks, don't be surprised...

If you are visiting Turkey in summer be sure to bring sunglasses, hats, sun cremes, etc.

Although tap water is safe to drink, prefer bottled water.

All the sanitation issues are strictly controlled at touristic places but be sure not to buy any food from street peddlers.

Be aware of the traffic in Turkey especially in big cities.  Do not cross the street before being sure of a safe pass.  Turkish people are Mediterrenean and traffic rules are not strictly obeyed here.

Bargaining is part of the Turkish culture, a reduction of 10-20% is always possible especially in local shops.

Guide to Turkish Culture, Etiquette and Language