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 Data Thieves from Outer Space Learn about the dangers of internet fraud with this highly educational and fun “pulp” comic. Volunteering in Retirement For many, retirement includes contributing their time and talents to an organization in need. To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name.