Exchanging money All stores, restaurants will take US dollars and travelers checks.  Odds are however that the exchange will be in their favor.  It is best to exchange your money first in either the bank (best options), exchange places (casa de cambio) or in the hotel (check to rate as most do not give you a good rate).  NO ONE takes US coins, bills that are ripped, written on, taped up or glued back together. See Money Exchange Tips

Buses cost $7 pesos (NO American coins) per person / 1 way. You get a ticket, but, it is for their control. There are 4 buses R-1, R-2, R-15 & R 27. If you are traveling within the hotel zone then it really does not matter what bus you take (Wet'n Wild is the exception. It is in the hotel zone but only half the buses go there so ask before you get on). R-2 & R-15 go to Wal-mart & Mercado 28. R-1 you ask! Well, it now goes almost everywhere. You have to read the front right window of the bus as it lists where it ends up. R-1's will go to Puerto Juarez, Wal-mart, Plaza 2000, Mercado 23, the bus station & places I have never been. The R 27 turns left on Tulum Ave & goes to Plaza Las Americas (the local's mall).

Here are a few things that everyone should know for their next vacation in Cancun.
Taxis. You can get a taxi cab anywhere in Cancun, the cost is variable depending on the zone, fares to or from the hotel zone are the most expensive, we suggest you to arrange the price with the driver first. In most of the hotels you can find at the lobby area or by the bell boy counter a sign with the current prices for local taxis. The picture on the right shows the average size of the taxis, all of them are white and green stripped, it must have a number too. Capacity: up to 4 people without luggage or 3 with luggage.

Local taxis are not allowed to transport passengers from the airport, they can take you over there for your departure only. To go to your hotel from the airport you can use any transportation line located on the two terminals but be aware with the unauthorized persons working at the airport, they are commonly called pirates and you could end paying much more than the regular rate.