I have several, and usually one in my pocket - in fact there's one there now. I've always had at least one, ever since I was given one as a boy as a sort of rite of passage.
The oldest one I have is an old Elinox Pioneer Rancher, with checkered aluminium scales like the current Victorinox Alox models, but anodised red. It belonged to my grandfather, and is probably about 60 years old. I also have a Victorinox Fieldmaster which was my father's.
When I go hunting I'll usually carry a Victorinox Hunter, which is a large-frame model with a locking main blade, a very effective bone saw and gutting blade, and a few other tools. I also like the Victorinox Hiker, which is a medium-frame with a useful set of tools without being too bulky. I have a few others too - and I use the toothpicks!
