The list author says: "I like ultralight, effective, durable stuff that is easy to use and goes where I do... Having a few 'key' things on my keychain helps me stay organized. With carabiner or pull-apart keychains, I only take what I need. I've added some flashlights to the list, but I usually just use my iPhone flashlight app. Flashlights and multitools have definite size and quality trade-offs, so I've included options. For reference, a typical Schlage house key is 5 cm (2 in) long."
"Set up a free, secondary email account, and order an ID or pet tag with a message like, "If found, please email firstname.lastname@example.org" to improve your chances of meeting up with lost keys. Outlives changes in address or telephone and won't reveal personal information. You get 2 dog tags w/ 4 lines for about $6."
"Set up a free, secondary email account, and order an ID tag with a message like, "If found, please email email@example.com" to improve your chances of meeting up with lost keys, outlives changes in address or telephone and won't reveal personal information."
"Tiny, inexpensive – lower quality than a Fisher, PicoPen or Inka, but to minimize bulk, 'the best pen is the one you have with you...' I use mine daily. Includes 4 refills or cut a bic refill to size. 5 cm, extends to 11.5 cm"
"Write anywhere, including upsidedown. Attaches to keychain by the cap, so you can pop it off to write. Pressurized ink. A bit bulky, but really reliable. 10 cm (4 in) long. 28 gr (1 oz). (The Inka Pen might be smaller & lighter, but I can't stand blue ink!)"
"Store, share and back up your digital stuff. Looks and feels like a regular key. Comes in 4, 8, 16 & 32 GB. Use the different shapes (square, round, triangle) to track what's on each one. 5.6 cm (2.2 in) long; super light."
"I usually use my iPhone as a flashlight; but if you don't carry a phone that doubles as a flashlight, this little Fenix is worth the money. 1 AAA. 10 lumens. 7.1 cm (2.8 in) long. 14 grams (0.5 oz) without the battery. (Alternative: Streamlight MicroStream)"
"This cable is simple, not bulky & holds a lot. Sort your stuff on different ones, then clip to a quick release. I'm new to these, but beginning to favor them over weak S-biners and certainly split rings for being quick & convenient. 0.6 oz, approx 4" long when open."
"Another keychain alternative – Pros: take only what you need, quickly remove tools to use them more easily; clip it onto something else. Cons: some tool rings are too small to fit – you'd have to add a large enough split ring; spring is not very strong so tools may pop off too easily."