Want to retire worry-free? Here are some simple ways to do it.

For most of us, there’s nothing simple about planning for retirement. We sweat it out trying to figure out that magic number we need to step out of the workplace. And then there’s when to tap Social Security. In his new book, “Retire Today: Create Your Retirement Master Plan in 5 Simple Steps,” Jeremy Keil, a certified financial planner, tries to put a damper on all that anxiety. His low-key, “you’ve got this” approach slides through all the planning basics from trimming taxes to investing in your retirem ...