USA - American dollar (USD)
In the US, cash is used more than one might think. Often, minor expenses can't be paid with cards. Therefore, we recommend that you bring cash and a card when you travel. A credit card is often needed if you wish to rent a car. It is also recommended to have smaller denominations for tipping. Make your exchange before you travel and be prepared when you arrive. No need to look for an ATM first thing after a long flight.