Gerber used to make and even smaller LST, which I think was called the Micro. It is 2 inches overall with a 1.5 inch blade.

I grabbed a whack of them on a close out sale and they went into and onto every kit and keychain I have. Standard LST contruction and quality. I'm sure there are some still floating around out there...

Inexpensive enough to stash a bunch, big enough and strong enough, that you can cut what you are trying to cut and not yourself.

Jenks