I EDC a William Henry B7-FT. I carry it in the coin compartment of my wallet. It's a button lock modified Wharncliffe folder with a 3.0" blade made of ATS-34 and Titanium scales. At 1.7 ounces it's practically weightless. It's one of the sharpest knives out of the box I've ever owned.
I've got lots of other folders and I used to rotate among them for my primary carry in one of my front pockets. But I've stopped doing that since I've been carrying my LCP. I just don't have room for them anymore.