This simple chart can show you how close you are to early retirement

Four Pillar Freedom To some, early retirement is a holy grail. More and more people are going to great lengths to achieve financial freedom in their 30s, sharing their tips, spreadsheets, and saving strategies along the way. The financial website Four Pillar Freedom has added another nifty tool to the cache: an early-retirement grid that breaks down how long you'd have to wait to quit working based on your current after-tax earnings and spending — your income-spending gap. It's simple — it d...