Chris Harlow and Dan Erickson are the hosts of the Harlow Wealth Retirement Hour going forward, and today they take a look at some common mistakes made in retirement planning. The biggest one, but not the only one, involves having more risk than needed, as many people are invested aggressively as if they were still working. Retirement involves having money available in a more regular, guaranteed fashion to cover everyday expenses, and stock market investments may not provide it during times of market volatility.