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 Message Thank you! Oops! Related Content Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too. U.S. Personal Savings Rate What can be learned from the savings rate? Where Will Your Retirement Money Come From? Retirement income may come from a variety of sources. Here's an overview of the six main sources.