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Avoid Airport Currency Counters
Airport FX kiosks often charge 8–15% above mid-market rate. Use an ATM instead — even with a $3–5 ATM fee, you'll usually come out ahead on large withdrawals.
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Use a Zero-FX Card
Cards like Wise, Revolut, or Charles Schwab give you the real exchange rate with no foreign transaction fees. This alone can save 3–5% on every international purchase.
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Always Pay in Local Currency
When a merchant or ATM offers to convert to your home currency (Dynamic Currency Conversion), always decline. Their rate is typically 3–8% worse than your card's rate.
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Monitor Rates Before You Go
Set a rate alert on Wise or Google Finance if you're exchanging a large amount. Even a 2% rate improvement on $5,000 saves $100 — worth a few days of patience.
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Mix Cash and Cards
Keep a small amount of local cash for markets, taxis, and emergencies. Use your zero-FX card for larger purchases like hotels and restaurants.
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Watch Out for Hidden Fees
Many banks charge a "foreign transaction fee" of 1–3% on top of a spread. Check your card terms before travelling — switching to a travel card can easily save $200+ on a 2-week trip.