This week on How To Do Everything, Wait, Wait producers Mike and Ian recruit television icon Maury Povich to help a listener reveal some hard truths, and we create some helpful (and unhelpful) reminders for when you should replace your household items. Plus, when a married couple calls in with a 29-year-old feud, the guys recruit some royal help.You can email your burning questions to howto@npr.org.How To Do Everythi…