The Power of Compound Interest Learn how to harness the power of compound interest for your investments. Share | Have A Question About This Topic? Address Thank you! Oops! Related Contents Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money. 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.