<prompt> Human: Im a college student from the US and this summer Im studying in London. My question is how do I spend money there? I have a Discover credit card and Ive informed them of my travels, including my layover in Toronto, not yet about my weekend in Paris, but I dont know if it is common for places in LondonTorontoParis to accept Discover. I havent informed my bank yet. So, should I just take some cash and use my Discover most of the time? It doesnt have foreign transaction fees Should I use my debit TD bank card? I dont know if it has foreign transaction fees Should I exchange all the money I plan to spend here in the US and bring it with me? Should I get a new travel card? Or a prepaid card? Assistant: When I went to paris they didnt even know what discover card was hahaha I was really happy I brought a backup card. Human: What type of card was the backup?  <response>: Take a VISA and youll be fine. 