It can be difficult to know how much cash to bring when going abroad. Generally speaking, exchanging about $200 USD is a good idea, unless you know you are going on quite a few excursions where you will need to pay cash. There will be ATMs wherever you go and the exchange rate is usually good. You can always exchange any unused cash once you return. Remember, from Tip 85, exchange some small bills/coins so that you can use it right away when you land.
In the USA, we typically only need to enter PIN (personal identification numbers) on debit cards not credit cards. In many parts of the world, you need PIN numbers for both types of cards. You may want to call ahead to your credit card companies before you travel to see if you can set up a PIN.
As noted in a previous tip, it is also helpful to alert your bank of your travel plans. Many have an online form you can complete to set that travel alert.
It is helpful to let your credit card company know you are traveling even if only a few states away. The bank’s fraud protection often proactively freezes your account if they notice unusual charges. I had to follow up with mine once just inside the Disney gate after charging our breakfast purchase nearby. Not a fun way to start the day.