All during the fall pledge drive, Brian is talking to some of our favorite professional advice givers on thorny issues like parenting, creativity and etiquette. Today, Michelle Singletary, personal finance columnist for The Washington Post and author of the new book What to Do with Your Money When Crisis Hits: A Survival Guide (Mariner Books, 2021), answers listener questions on finances, from how much to put away each week to how to invest ethically.