Here at the IAJ, we have long been a fan — and user — of Prof. Robert Sahr's “Inflation Conversion Factors” web site and tools.  We were snoozing at the switch a bit and didn't notice that Sahr updated the site in early June 2009.  Check it out: it's filled with both PDF and Excel data/tools to calculate the comparative costs of most anything from 1774 to 2019.  The site also includes some fun data:
The charts on the following topics are available either by scrolling down or by selecting the appropriate link:
     Selected Government-related Items (number of government employees, Social Security and AFDC/TANF; stamp prices, minimum wage, mean and median family income) 
     National Government Budget:  Outlays (Spending), Revenue, Deficits or Surpluses, and National Debt 
          Selected Commodity Prices (gasoline and gold) [gasoline revised June 2009, using June 2009 price data and estimated 2009 dollar conversion factors]