» How I live on $7,000 per year Early Retirement Extreme: — a combination of simple living, anticonsumerism, DIY ethics, self-reliance, resilience, and applied capitalism

In fact, by taking the other end of the bargain, saving as much as other people are spending on wants, it's possible to retire and live on invested savings after just five years of full-time work.

In his textbook Early Retirement Extreme, the Danish astrophysicist Jacob Fisker points to another transformative technology: online secondhand markets. Most people don't appreciate that you can not only buy stuff dirt-cheap online, you can also store your stuff for free. Think of eBay and Craigslist as enormous virtual storage warehouses, filled w