Add this to part of your every day carry: the Victorinox Swiss Army RangerWood 55 Swiss Army Knife. It's a bit pricier than most pocket knives, but for good reason.
For starters, it has a lifetime warranty. The main blade is locking, with the Victorinox logo releasing the lock. The handle is ergonomic and made from natural walnut, a hard wood. The knife includes:
- a 3.9 locking blade
- can opener
- cap lifter
- small and large screwdrivers
- wire stripper
- wood saw
- reamer
- and corkscrew
These implements should handle about 99.9% of your every day needs (provided you're not a lumberjack by trade).