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 Question Thank you! Oops! Related Content 8 Financial Lessons from the Big (and Little) Screen Financial lessons from movies and TV. What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA. Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction.