I have a VG 10 Gut N Bait Knife I take everywhere. It has a sheath that clips on my pants leg and it's a pretty versatile knife that can be used for cleaning and gutting deer, cutting misc hay string or even filleting out fish. I haven't really seen anything else like it but its a good all...
Get you a good vacuum sealer and be done with it. Vacuum sealers remove all of the excess air which is what allows the bacteria to build up and spoil the meat. Freezer paper will still keep meat for a little while but it does not compare to vacuum sealing the meat.
Around central to north florida is some of the best hog hunting. I've heard near okeechobee can also be good. Lots of good info on hog hunting in florida