You've only got two of them...
As I've gotten older, I've had more and more close calls with my eyes. I've been very lucky to not have to learn the hard way to protect my eyes.
To remind myself to wear safety glasses, I have at least 10 pairs laying around my shop; and i've finally trained myself to wear them consistently.
Look, I get it - it's annoying to wear them - they fog up. But i've found that these Pyramex Anti-Fog glasses work pretty well to keep the fog down.
They've got my seal of approval - Do yourself a favor and grab a couple pairs.