Hello, I am set to arrive in Madrid very early on a Tuesday morning and since it will be my first trip to Europe, I am not sure if I should change my US dollars to Euro at the airport upon arrival, or wait till I am checked into my hotel? I am staying at the Room Mate Alicia in Plaza Santa Ana, so not sure if there an exchange place in that area?
Also, I am planning on reserving my transfer from the airport to my hotel, and paying by credit card in advance. If I don't have any Euro - can I tip the driver with US currency? What would be "standard" tip amount?
I apologize if this is a dumb question - but I want to make sure I am clear before I arrive.
Thanks in advance!