Baby boomers who have retired but want to reinvent themselves and create revenue are finding new ways to stay active and engaged. Nearly one in five people who remain working past age 65 are self-employed Boomers are deciding they'd rather start a new business at an age when their parents are retired and their grandparents hus are past their life expectancy. They not only have to figure out how to make their money last, but they need to reinvent...