A year into the pandemic, a lot has changed. And we're reminded of that every time we go outside (if we go outside). Masks have joined the traditional don't-leave-home-without-them trifecta of keys, wallets and phones - and they are here to stay. There are folks who hate them, who can't breathe through them, or who think they're a sign of political oppression. But for others, the widespread use of masks has made the past year one of liberation. With a mask, you can sing in the grocery store, talk to yourself on a walk, grimace in the gym, leave the...