We've all made financial mistakes, but hopefully, they've been ones you can recover from quickly. But when it comes to retirement, there are major decisions that could end up costing you hundreds, thousands - potentially even hundreds of thousands of dollars over the course of your retirement. This week, Gary Mattson & Gerald Green of Mattson Financial Services begin our discussion on these costly six-figure mistakes - and how to avoid them. Check out more lessons at www.MattsonFinancial.com.