Data and money for a European trip: the setup that avoids fees
An eSIM that works on arrival, a card with no foreign fees and three ATM habits. The whole setup takes twenty minutes and pays for itself on the first day.

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Most trip overspend is not restaurants, it is fees: roaming add-ons, ATM surcharges and the dynamic currency conversion trap at the card machine. This is the setup we use for every trip; it is boring and it works.
Data: one eSIM for the whole trip
If your phone supports eSIM, buy a regional Europe plan before you leave, install it at home and switch it on when the plane lands. A regional plan covers hops between countries without buying again. Keep your home SIM active for calls and bank codes but turn its data off.
EU residents already roam free inside the EU, so this section is for everyone else, and for EU travellers heading to Switzerland, the UK or the Balkans where roaming is not included.
Money: one card for spending, one for the ATM
Spending card: a card with no foreign transaction fee and the real exchange rate. Pay in the local currency every time; if the terminal offers to charge you in your home currency, decline.
ATM card: withdraw a larger amount once rather than small amounts often, and use bank ATMs rather than the independent ones in tourist streets.
Backup: a second card from a different provider in a different bag.
Cash
Southern Europe still likes cash for markets, small bars and some taxis. Fifty to a hundred euros on arrival is plenty; top up from a bank ATM when needed.
Twenty-minute checklist
Buy and install the eSIM, then take a screenshot of the activation page.
Turn on travel notifications for your cards, or confirm your bank does not need them.
Save offline copies of tickets, bookings and your insurance policy.
Note your bank's lost-card number somewhere other than your phone.
Does an eSIM replace my number?
No. Your home SIM stays in place for calls and texts; the eSIM only carries data.
Which is better, Revolut or Wise?
For spending they are close. Wise is clearer about fees; Revolut has more features and a weekend markup. Carry one of each if you can.
Written by
Trip planners
A small team based in Europe, travelling on ordinary holiday allowances and writing down what we would do differently next time. Replace this bio with your own in Admin → Authors.


