When I was 3.76 years old, I was given my first toy cash register for Christmas.  When I received this gift, I played with it every single day.  This cash register taught me about an important cultural universal, economics.  The cash register came with fake coins and dollar bills.  This fake currency allowed me to experiment with different ways to use currency, and how much different items were worth.  I loved calculating different amounts of money using the calculator on the cash register.  Currency is used to get items that we need.  This monetary system is used every day, and is more efficient than trading and bartering.  It eliminates “having to make a deal”.  Currency is used all throughout the United States of America.  All of the people in the United States of America use the same currency.  This is important because when someone travels to a different state they do not need to exchange currency.  This small toy cash register had a large impact on my knowledge on currency.