<prompt> Human: what is the best credit card for cash back? i dont really want to worry about categories that change from month to month. this would be my primary credit card.i read online and there seems to a difference of opinion. the amex blue cash everyday seems like it might be ok  <response>: Ive been using the AmEx blue cash preferred card and like it quite a lot. The annual fee is more than made up for by the constant 6 back on groceries. Ill shoot you a PM. 