A man who retired comfortably at age 30 explains how much money he had to save

Mr. Money Mustache After a mere 10 years of working as software engineers, Peter Adeney (better known as "Mr. Money Mustache") and his wife Simi had enough money to retire comfortably and debt-free. That was in 2005, right before Mr. Money Mustache's 31st birthday. "This was achieved not through luck or amazing skill," he emphasized to Farnoosh Torabi on episode 38 of "So Money," her personal finance podcast. "But simply by living a lifestyle about 50% less expensive than most of our peers and i...