Years ago, I slipped and fell in the Sierras on a backpacking trip because my beloved and comfortable hiking boots had traveled so many hundreds of miles on my feet that they had nearly slick soles. I condemned those boots to the landfill — oops! Turns out that I’m not Goody Two Shoes after all, since it takes more than 50 years for leather shoes to break down in a landfill. Apparently, they will still be there for some time after I’m gone. Older and wiser now, I bought a quality pair of hiking boots to replace them. But with wisdom and age, also comes wider feet. Every time I…