Copper Bistro Network

My son and I will be traveling out of the country next month. This is a first for both of us. I was trying to figure out everything that we will need to know about money exchange before we leave for our trip. I want to know where we need to go and how the whole thing works. My son thinks that I am being a bit paranoid. He thinks that we will be able to put everything on a credit card and that we will not need much cash at all. I hope he is right about this whole thing.