Leaving Your Lasting Legacy Want to do more with your wealth? You might want to consider creating a charitable foundation. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content 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? Choose Your Own Retirement Adventure Retirement is one of the greatest adventures you’ll have. Which retirement adventure will you choose? Avoiding Cognitive Decline Try these activities to keep your brain sharp.