Inspired by Early Retirement Extreme, I have two new goals:
1.) pay the house off in five years
2.) save 75%-80% of my income for the next five years after that.
This will at the very least allow me to take a few years off after I'm 40.
It might be a simple idea, but the math of saving 75% of your income blew my mind. If you save "only" 50% of your income, for each year you work, you get one year saved up. But if you save 75% of your income, you have demonstrated you can live on 25% of it, so for each year you work, you save 3 years of income. 80% savings is even crazier: for each year you work, you save 4 years of income.