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. Share | Related Content Financial Hacks for Millennials: Don’t Get Burnt With FIRE Financial Independence, Retire Early (FIRE), also known as radical savings, encourages aggressive saving to retire by age 40. Spend Mindfully by Adopting a Saver’s Mentality As we have all been forced to change our behaviors and depart from our “normal” routines, it is no wonder that our spending behaviors have changed too. Conquering Retirement Challenges for Women Looking ahead can help you conquer these unique obstacles.