What Our Kids Can Teach us About Saving Money Would you guess that Millennials are effectively saving for retirement? Well, they are. Share | Related Content Keeping Up with the Joneses Lifestyle inflation can be the enemy of wealth building. What could happen if you invested instead of buying more stuff? Life and Death of a Twenty Dollar Bill How long does a $20 bill last? Historical Inflation This calculator shows how inflation over the years has impacted purchasing power.