Think you're too young to start thinking about your retirement? Think again. People are living longer, which means you'll likely have quite a few golden years to enjoy. Get the most out of them by planning your future goals now. Numerous investment options will help you attain your goals. You can invest in employer-based plans, like a 401(k), or you can set up your own plan, like an IRA. Don't plan to rely on Social Security as your sole source of income for retirement.