When deciding whether to use credit cards or cash abroad, consider destination customs, transaction costs, safety, and spending habits. Credit cards offer convenience, fraud protection, and favorable exchange rates, especially when they are issued by banks that charge little to no foreign transaction fees. However, some countries or small businesses may only accept cash, and card acceptance may be limited outside of cities. Cash is widely accepted and helpful for bargaining or tipping, but carrying large amounts increases the risk of theft and often results in unfavorable exchange rates when converted at airports or hotels. Additionally, fees vary: credit cards may charge foreign transaction fees (typically 1-3%), cash exchanges frequently have hidden markups, and ATM withdrawals may include bank and local ATM fees. Some countries prefer contactless payments, while others primarily use cash. A balanced approach, such as using cards for lodging, dining, and shopping while keeping cash for local expenses, allows for greater flexibility and savings. By researching local acceptance trends and understanding your bank's fee structure, travelers can avoid payment issues while abroad and save money.