Don't let the overseas store/bank do the currency conversion - the rates are awful and you might be charged exchange fees twice
More ways to save money while travelling in the HandWallet Expense Manager & budget app for Android:
https://play.google.com/store/apps/de...
When you need to pay in a foreign currency you have to be careful about exchange rates and fees. Depending on where and how you change your money, you could end up paying a lot more! Stores often have terrible exchange rates, so when you’re buying something with your credit card abroad, it’s best to use the local currency. You’ll save a lot more money.