Foreign transaction fees (typically 1–3% per purchase) and international ATM fees ($3–5 plus a currency conversion markup per withdrawal) are the most common invisible leak in a travel budget, because each individual fee feels small.
What a genuinely good travel card looks like
No foreign transaction fee is the baseline requirement, not a bonus feature — plenty of no-annual-fee cards now offer this. For debit, look specifically for accounts that refund ATM fees charged by the machine's own bank, since that's the part most people don't realize is separate from your bank's own fee.
Apply well before you leave
New cards and accounts typically take 1–3 weeks to arrive and activate. Apply at least three weeks before departure, and call the card issuer to set a travel notice or confirm it's not needed — some issuers no longer require this, but it's worth confirming rather than having a card frozen on day one abroad.
Always carry a backup
Bring two different cards from two different banks, stored separately (not in the same pocket or bag section), plus a small amount of local currency cash for the first day before you've located a fee-free ATM.
Takeaway: The right card matters less than having two of them from different institutions — a single lost or blocked card shouldn't be able to end your trip's cash access.