Retiring the 4% Rule A portfolio created with your long-term objectives in mind is crucial as you pursue your dream retirement. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content 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. Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns.