As an American, 2 credit cards should be the bare minimum. I carry 4 that I use regularly and a 5th that sits as a "break glass in case of emergency". They all

As an American, 2 credit cards should be the bare minimum. I carry 4 that I use regularly and a 5th that sits as a "break glass in case of emergency". They all get paid off every month, so it costs me nothing.