Instead of dollars we use Quetzales. For every dollar you have somewhere around 7.50 Q's or Quetzales. If you are living or visiting Guatemala and make American wages everything here is so cheap. You can get fruit and vegetables for half the price you would get in America. Other household items are a little more expensive, but not nearly as high as it is in the states.
One of our favorites things to do with our extra change is to set it aside and use it at the tienda's when we want a little treat such as a Pepsi for Q3. It's the best and always gives us something to look forward to. :)