Editor’s Note: To celebrate David E. Petzal’s 50th anniversary at F&S, we’ve asked staffers and contributors to select and share their favorite story of Petzal’s (no easy task—there are a lot of good ...

Collecting Social Security doesn't preclude you from working, either out of necessity or for personal fulfillment. There are age and income rules you need to follow, or you could be penalized. If you ...