Exchanging money in Rio is an easy and common thing as long as some safety precautions are observed - As anywhere else in the world, it is a good idea to check conversion rates before actually going to the store and since some houses have different rules, fees and taxes, a good idea is to call beforehand and specify the amount of money that needs to be changed - Some companies even deliver the money at home.

Also, travellers must always take with them an ID with photo, preferably the passport since some foreign docments are not accepted - It is a good idea to check reviews and the legitimacy of the venue before closing any business.