The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. Related Content Perception vs. Reality There’s an alarming difference between perception and reality for current and future retirees. Password Protection Strategies Simple steps may help you foil hackers and protect your privacy. Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them.