A few years ago I had the pleasure of meeting fellow Backwoods Home writer Jeff Yago and found him to be a very smart guy. Here’s one of his articles on handy things for your keychain.
It’s a subject near and dear to my own heart. I like to be prepared for emergencies and the decades have taught me that when the crap hits the fan, anything you need that isn’t on your person or at least within immediate reach probably won’t be available in time. Keychains, with the sort of accessories Jeff recommends, are a great way to keep that stuff readily at hand.
All I could add would be the D-Jammer keychain I came up with for Monadnock Lifetime Products, the leading manufacturer of police batons, back in the early ‘80s. Picture a Kubotan mini-baton narrow enough to run down a .38 or 9mm handgun barrel to punch out a stuck bullet, casing, or cartridge. Mine carries keys for house and outbuildings and doubles as a self-defense tool.