Bring Euro in 20s when you come to Rome. After that is spent and you need more money, it will be necessary to go by the Bancomat. Do not make the mistake of thinking that you can just use your credit card anywhere you go. Most places don’t take them. Mostly because their phone lines are down or sporadic. Any Bancomat you come upon during your walk is fine, I haven’t had a problem using any of them. However, don’t take out anything that would be in 50 Euro increments, like 100 Euro or 150. Most places look at you angrily when you hand them a 50. Take out 80 Euro. That way you may be assured to get four 20s. Just a tip we learned while we were here.