Some old threads are worth reviving.
Under Florida statutes, you can open carry almost any blade. Local laws vary. Knives other than a "common pocket knife" require a permit when concealed. The law does not define "common pocket knife," and opinions vary among police officers, prosecutors, judges, and juries. So I usually carry a knife on my belt and/or a neck knife outside my shirt.
The really great thing abut a neck knife is that, in cold weather (we have been in the low 20s lately), I can put on or take off a sweatshirt, jacket, or coat without having to remove the neck knife. And I can always reach the neck knife easily.
My favorite neck knives are:
* Spartan Blades Field Grade Enyo Fixed Neck Knife 2.6875" AUS-8A Black Drop Point Blade, Skeletonized Handle, Black Molded Plastic Sheath - SBBL2BK
* White River Knives M1 Pro Backpacker Fixed Blade Knife 3.25" S35VN Stonewashed, Textured Orange G10 Handles, Kydex Sheath - WRM1-TOR
For wet days (meaning all summer here), this is an excellent knife, but the sheath is very awkward:
* Spyderco Fred Perrin Subway Bowie Fixed Blade Knife 2.8" LC200N Satin Plain Blade, Black FRN Handles, Boltaron Sheath - FB48PBK
I have about a dozen other neck knives that I wear from time to time, always on a break-away lanyard.
Here is an old photo: