$50 dollars or $50 pesos?
Another common thing where you can save money is to watch and talk correctly whenever you buy something. It has happened several times on my visit to Puerto Vallarta that I share a taxi with other tourists and they don’t ask how much the trip will cost until they arrive! THEN when the taxi driver answers $70, the tourist ask DOLLARS? And now guess what the taxi driver will answer? “YES”. You just payed 10 times what a normal taxi trip would cost because you tempted the taxi driver by asking a ridiculous question like “Dollars or Pesos”?

The majority of people that work down here in Vallarta make no more money than $5 usd a day! Some are lucky to get a lot of tips or to own a business, but when you dare to ask “dollars or pesos” they feel that you probably just have too much money if your logic can’t tell how much a product is or should be worth, so they will happily look into your eyes with a big fat smile and reply: “Dollars”.
-http://vallarta.blog.wexico.com/