The most convenient way to bring your money is in the form of a debit or credit card, with some extra cash in case of an emergency.
Many credit and debit cards can be used for withdrawing money from cajeros automáticos (ATMs) that display the relevant symbols such as Visa, MasterCard, Cirrus etc. There is usually a charge (around 1.5% to 2%) on ATM cash withdrawals abroad.
Tipping is almost always optional.
Restaurants Many Spaniards leave small change, others up to 5%, which is considered generous.
Taxis Optional, but most locals round up to the nearest euro.
Bars It’s rare to leave a tip in bars (even if the bartender gives you your change on a small dish).