Principles of Preserving Wealth 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 | Related Content When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Managing the Risk of Outliving Your Money Steps to help you sustain and grow your retirement savings. What Is My Current Net Worth? Use this calculator to estimate your net worth by adding up your assets and subtracting your liabilities.