Gerber EAB Lite Pocket Knife [31-000345] $6.49

I happened across what looks like a decent little razor blade knife. It looks like changing the blade requires a screwdriver or coin and that little screw is liable to grow legs and run off, but that’s a small price to pay for something this lightweight and tiny. It might even make a good money clip too.
https://www.amazon.com/Gerber-Lit…002RILCLY/
CCC shows this is the lowest price ever (via Amazon directly)