My favorite sunglasses have a funky cat-eye shape, with translucent green frames made of plastic molded into three-dimensional crinkles. It was love at first sight: I noticed them on display in a small thrift shop in St. Louis and immediately ran to the cashier to buy them.
For the next 15 minutes, I thought it was the best $10 I’d ever spent. But then, I stuffed them carelessly in my purse, where they scraped against the sharp teeth of my keys. I’d barely stepped out of the sun before my newfound favorite sunglasses were marred with surface-level scratches on one of the lenses.
