I’ve seen key fobs that made me think, “that’s great. I’d like to keep my keys on that.” But I stopped buying them years ago. I’m almost as minimalist as Glen. I keep a split roping with the bare minimum of keys. The only thing that I keep these days is a P38 can opener. I don’t use it often but I have used it many times over the years to open cans, tighten/loosen screws, etc…