Changes

Don´t change your money at a bank or casa de cambio- they will give you the official rate set by the government, about 8pesos10pesos/USD. Better do it on the black market where the rate is about 12pesoes15pesos/USD. You can see the exact unofficial rate at http://dolarblue.net/ so you don´t get ripped off. In Buenos Aires you can change your money by going up to anyone yelling "cambio" on the street La Florida. Check the money carefully to be sure you aren´t buying counterfeits! In other major cities, walk down the main pedestrian road in the center and maybe you will find an "arbolito" ("little tree") who will change it. Otherwise, ask your host or friends if they want to buy your dollars.