I had no idea that one could exchange dollars for pesos at a Pago Fácil, much less that you could get a close-to-the blue dollar rate. Thank you for your tip. I will pass that on to my friends. In the meantime, I would still be interested in getting recommendations for a couple of more options. My friends have never been to Buenos Aires before. I already told them that, whatever they do, DON'T exchange dollars with those sketchy hawkers on Florida. I'm not in Buenos Aires right now. If I were, I'd try to find something for them myself. I appreciate any help.