I've come to a situation where I have a desk that is used by more than one mac (though never at the same time). The desk is set up with a nice USB-C/TB3 dock with stuff attached (audio, ethernet, ...
Remember that crazy small, RF receiver used with Logitech's VX Nano? Meet the Bluetooth 2.0+EDR equiv, the Princeton's PTM-UBT3S which measures just 19-mm (0.75-inches) long. So yeah, it's small, in ...