Back in the early ’80s, Rodale Press released a book by Roger Byepsen titled *The Durability Factor*. It contains detailed explanations of what made some products work better and last longer than others. More than just a list of worthy brands, it’s a guide to recognizing quality in general. Its content is dated, of course, but its principles are timeless. Anyone interested in “buy it for life” as a mindset should enjoy this book.