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 » Related Content The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice. Tax Deductions You Won't Believe Here are some examples of deductions from the IRS that were permitted and some that were, uh, too creative. Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt.