The Power of Compound Interest Learn how to harness the power of compound interest for your investments. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents Saving for College 101 Here’s a crash course on saving for college. A Penny Saved is Two Pennies Earned Here are some simple and inexpensive energy-saving tips that may help you save money. Doubling Your Money This calculator demonstrates the power of compound interest.