I carry a Victorinox Soldier. It's a handy little pocket knife with aluminum scales that has a blade, awl, can opener with a small screwdriver (also for Phillips screws), and a bottle opener with a large screwdriver and a wire stripper.
I also keep a Victorinox Rambler on my keychain. It has a blade, scissors, a nail file with, a screwdriver, a bottle opener with a magnetic Phillips screwdriver and a wire stripper, a key ring, tweezers, and a plastic toothpick.
I also keep a Victorinox Rambler on my keychain. It has a blade, scissors, a nail file with, a screwdriver, a bottle opener with a magnetic Phillips screwdriver and a wire stripper, a key ring, tweezers, and a plastic toothpick.