This is more of a thank you than a success story. I just finished listening to Start Late, Finish Rich. A couple of months ago I began reading the Automatic Millionaire. I got far enough that I knew I needed to increase my contribution to my retirement plan and did. I am not yet at the level you suggest, but will correct that.
I am 57 years old and single. I rent and have a small IRA. I earn $20,000 a year at a job I love (working at my county library). Since I have benefits, that is actually not a terrible salary for this area. I had pretty much given up on the idea of being able to save/earn a significant amount of money for retirement. After listening to your book, I know that it is possible!!