(Link via SurvivalBlog)
If I wanted to buy something that cost $100 in the year of my birth, it would currently cost $680.74. This is an indicator in how debased our currency currently is. It gets worse--for example, $100 in 1913 is $2035.35 today.
Hell, I would have been a very rich man in 1913! Move over there, Vanderbilt.
If you'd like to find out how bad it has been since you were born, use this free Bureau of Labor Statistics inflation calculator. There is also a lot of other information on their website that should be intriguing to those with inquiring minds.