The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Principles of Preserving Wealth How federal estate taxes work, plus estate management documents and tactics. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. How Stocks Work Understanding how a stock works is key to understanding your investments.