Small load-bearing carabineer, with categorized keys on their own ring. Car keys, house keys, safes, bikes. Just grab the keys you need and go.
weight bearing carbine with like man 20 basic ring with all kinds of keys and do dads and such attached. so like common door, front door, mailbox, bike lock. one has a can opener. oh storage key. just tons.
Transportation keys (car or bike locks) are each on their own key ring and I take the one I need. All the rest go in my wallet.
Just a plain ring to minimize the size in my pocketses.
A little key wallet, keeps the keys from jingling when I walk.
Still just the default one.
I like how everyone’s answering another question, like OP asked “What do you keep on your keychain besides your keys?” Because none of those things would hold keys. The hole’s too small.
Now, like, the guys saying carabiner clip, you couldn’t put keys on something like that, but you could put one on your keychain so you could clip it to your belt. Useful if you want to keep your keys from scratching something in your pocket, I suppose. Also keeps your pockets less cluttered.
I’ve got three right in front of me. A fourth one is on my AirPods case. So yeah, definitely have them.
I have the same keychain from when I was 15, so over 30 years. My buddy had a party at his house and someone left their keys. After about two weeks and no one claiming them I switched my crappy keychain for it and left the keys with him. It’s a fork that the tines have been made into curls, lays flat though. It makes me happy to look at.
a short length of bicycle chain
I only have a bottle opener, and I only have it because my beer distributor didn’t sell any other kind of bottle opener.

As someone who’s backpacks and bags always turn into black holes this type of leash with a buckle (idk what it’s called) has worked wonders for my sanity.
This is probably paranoid, but a picture of a key is enough information for someone to clone your key fairly easily, probably not the car keys, but definitely what I assume are your house keys.
Brigands in my corner of the world wouldn’t go to such sophisticated lenghts to enter a domicile, trust. But thanks for the heads up, I’ll be less careless in the future.
A wire with a screw. Like the aviation industry.
A quick release keychain, it releases from a simple multi purpose carabineer. (Yes I know - the carabineer function is for my belt loop, the quick release is really what it is named for)
Carabiner on a belt loop
A cute squirrel that seems all innocent but actually is also a bottle opener
I just have a key ring that I attached my first dog’s nametag to. It says Adventure Dog on the front, it’s nice.





