5 Smart Investing Principles The slideshow presentation that you would like to view is too large for your current screen resolution. Click here to view to view the slideshow at full resolution. Launch Presentation » Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Rightsizing for Retirement What does your home really cost? Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose?