I had a dental appointment this morning and was due for x-rays. For the first time ever, instead of biting down on that little cardboard gizmo that holds x-ray film that they would have had to develop, they had me bite instead on a sensor that gave them an immediate x-ray image on the computer. And this little gizmo was a USB peripheral.
Naturally I had to do a web search: these little gadgets aren't cheap (and doesn't of course include the x-ray machine): around US$4000. But still, just another thing that convinces me that I'm living in the future.