At work, more than a decade ago, Wi-Fi let us take our laptops to meetings or the cafeteria or even nearby outside. At home, while the old laptop couldn’t hold a connection, so remained tethered to the DSL modem, the new laptop does just fine. So does the iPad, going on two years now.
The new laptop uses a wireless keyboard and mouse. And I’ve been using wireless headphones to watch TV for a year or so. It’s really nice having no wires for devices I’ve used for so long in tethered form. Of course cell phones started it quite a few years ago.
It all does seem to come with a new set of (minor) headaches, though!