The cool thing about Florida is the sombodyersomethingerother act which unifies all weapons laws. In other words, there are no local ordinances. No legitimate ones anyway.
Basicaly, you can carry a "common pocket knife" without a concealed weapons permit. Anything you want if you've got a permit. Being Florida is a shall-issue state, a permit is easy to get, if you're a goodguy. I keep meaning to get mine, but haven't gotten around to it.
You can carry any old knife you want if you are on your way to or from, or engaged in, a legal act of hunting or fishing.
Just don't abuse it. You know, like carrying a fishing pole in one hand and a bowie in the other everywhere you go. That law was written and is interpretted to allow people who are legitimately engaged inthose activities to go about their buisness unmolested.
Florida's cool about pocket knives. I've been arrested carrying one. Since I hadn't used it for anything naughty, it was simply inventoried and released when I was. Of course, this depends on where you are, some people are just jerks. Oh yeah, and all federal laws apply. Pocket knives in post offices are technicaly a no-go, but I've never heard of anyone getting grief for it.
Don't mess with autos. The laws are so weird it's just not worth it. You'll find they're easy to buy at gun and knife shows. Just make sure you leave them in the box and bring them straight home and leave them there. In stores, the general concensus is that all you need to buy one is a concealed carry permit or military I.D. I feel that's actualy a little dubious actualy, after reading the laws myself.
Oh yeah, and if it's in your car in a box, it's being transported and won't get you in trouble. I travel a lot, and always bring my Project 1 in my backpack. I have a small padlock I put on the zippers so the bag is not readily openable. I've been stopped and searched, but they've never confiscated the knife. The whole "3 steps to access the weapon" deal(the lock, the zipper, the sheath itself. works for guns too).