Opposite of yesterday - what newfangled tech/product/service have you recently discovered that is actually worth it and you use a lot now?

Back to cars for me, I now have both a close and close/lock button on the tailgate of my SUV. The close/lock button is WAY more useful than I could ever imagine. No more fumbling for keys when I'm heading in somewhere with hands full.

Video doorbells and an app to control my garage door are also way more convenient than I'd ever thought.