welp, it finally happened: I lost my glasses.
fortunately I don't need them for most usage. it means I can't read signs far away, and I'm likely to get more headaches, and of course I look much cooler with glasses than without. but it's not a terrible crippling loss.
plus, they were super cheap with Zenni. I'll order another two pairs (so I have a backup this time) and they'll probably be getting delivered about when I get home. :D