I got my first pair of glasses when I was 14 (I'm nearsighted). I wore contacts through most of my 20s but ended up doing a number on my eyes. So I've gone through a lot of glasses in my life. When it's time for a change in prescription, I usually donate my old pair and get new frames. Donation is always the best first option if the frames are still good. But what if we're talking about cheap sunglasses that are really scratched? Or you're attached to your old specs for some reason? Here are 18 (really very geeky) ideas for you!