18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? Related Content Dog Bites Neighbor. Now What? Even dogs have bad days. So, what happens when your dog bites a neighbor or passing pedestrian? Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money. A Primer on Dividends A company's profits can be reinvested or paid out to the company’s shareholders as “dividends."