Bad exchange rates and sneaky fees quietly tax every trip. A few simple habits — the right card, the right currency choice — keep more of your money in your pocket.
Always local. When a card machine or ATM offers to charge you in your home currency ("dynamic currency conversion"), it applies a poor exchange rate with a hidden markup. Choosing the local currency lets your own bank do the conversion at a much better rate.
For most purchases, a card with no foreign-transaction fee wins — real exchange rate, no need to carry much cash. Keep some local cash for taxis, markets and small vendors that don't take cards.
Use a real bank's ATM (not a standalone machine in a tourist area), decline its on-screen currency conversion, and withdraw a larger amount less often to spread any fixed fee. A no-fee travel card or account helps most of all.