The market for masks has changed dramatically during the past year. Until then, they were largely worn by health professionals, New Orleans Mardi Gras revelers, and, of course, rob bers counting on ‘em to provide incognito status. That was then and this is now. Around the globe, rank and file wear them during all waking moments, many with multiple layers to better protect themselves from COVID-19. My Uncle Mort, whose brain has churned with unlikely gimmicks during most of his 108 years, is quietly collecting washable masks. He’s tying them in bundles of 12 for resale later. “On that great getting’ up ...