A few weeks ago I spent far too much money on a new pair of glasses. As the optomotrist put it, I'm very short sighted, and previously I've had thick bottle-ends. But my Mum had told me of the new glasses stuff that had a refractive index of 1.71 .
I mean, it's not the 21st century we expected, and it's certainly not the one we wanted. But it's definitely the 21st century.
What next? Materials with a negative refractive index of course! This will of course allow me to convert my glasses into invisibility goggles.
 Only me, my Mum and Stan have been impressed by this. So sad.