I quit carrying knives several years ago. Recently I decided that was pretty silly since I own at least 35 knives of all shapes and sizes. So I started carrying my excellent Buck 285 lightweight folder with it's thumb stud and pocket clip. Then I realized how silly that was since I am unable to open any thumb stud knife with one hand without cutting myself most likely. So I decided it was just as easy to carry a real knife as a small one in case I really needed it. So now I carry a real SD knife. A Buck 4.5" 118 personal or a 5" 105 Pathfinder fixed blade hunting knife. Lots of intimidation factor from a real hunting knife that might keep you from actually having to use it in an emergency.