Supplemental medical insurance with specific overseas coverage, including coverage for medical evacuation to USA, useful. Crime rates vary. Thefts occur on overnight trains, including thefts from closed compartments. Car thefts, carjacking, theft from cars commonplace. Particularly outside Warsaw, difficult to cash traveler's checks or obtain cash advances on credit cards.
More banks offer ATMs allowing for easy access to emergency cash.
Driving, especially after dark very hazardous. Heavy alcohol consumption frequently factor in accidents. Virtually zero tolerance for driving under influence of alcohol. Rent cellular phone reaching all over Poland. Round continental sockets.