Thread: Keychain knife

I don't know how "affordable" you want it to be, but I have been very pleased with my tiny spyderco...to be honest, I don't even recall the model name. It cuts like a bigger knife, and quality is excellent.
I also know SOG recently came out with a tiny knife that my friends are pleased with. Again, I don't know the model name.

Edit: The spyderco I have is called the "ladybug." don't let the name discourage you...it really does perform admirably! I only carry it occasionally, as usually I have one of a vairety of Atwood small edged tools/knives in my back pocket. (currently the "fixer" gets almost EDC'd)