Most people won't plan their careers around a prospective retirement age, but it's certainly worth consideration when weighing employment benefits. These five career options will almost guarantee the option of retiring early if you begin working at a fairly young age.
But regardless of your occupation, it's important to remember that the key to a successful retirement is careful financial planning. If you're intent on hanging up the hat at 55, you can usually make it happen with proper budgeting and disciplined saving. Or, you can just live vicariously through this article and envy the folks who opted to pursue these early-retirement professions.