I carry at least one Swiss Army Knife with me every where I go (except a plane, of course). This 3 1/2 inch all-purpose tool is suitable for your pocket, glove compartment or tool box. This knife has dozens of uses for a do-it-yourselfer, a gardener or a camper.
This little wonder has a large and small knife, a corkscrew, a punch, a can opener with a flat blade screwdrive on the end, a bottle opener with a flat blade screwdriver on the end and what purports to be a wire stripper on the side (I have never used that), a key ring, tweezers and a toothpick. This knife is water resistant and made of high quality components.
I tend to use the knives on the pocket knife more than any other tools. After that I find that the combination of one of the knives and the tweezers are useful for splinters and thorns, and thus the tweezers often become the third most useful tool. I must admit that occasionally I use the toothpick, particularly when real toothpicks are not available.
The smaller screwdriver blade is small enough that it can also fit into a Phillips head screw. I have even been able to use the flat blade on some small internal hex head screws. I have never used the corkscrew, and I have used the punch as an awl. The can opener blade has yet to be used on this knife as well.
The difficulty with carrying tools is that they can fill your pocket very quickly. This small Swiss Army knife is small enough to fit into a purse or a pocket and yet large enough to be useful. While the larger Swiss Army knives have even more and larger tools and blades, they are also harder to carry. Of course this particular knife will not replace a tool box, but I find it amazing how many tasks I can accomplish with the simple tools available in this gem.