Tire Jack (don't have a crow bar, so I'll take the next best thing)
9mm. Pistol with 12 magazines (magazines go into backpack while 3 are on my...)
Tactical vest. With room for 3 or more magazines, a canteen, and can withstand nature.
Shotgun with 50 shells (go into backpack)
Water (canteen)
Canned food and a can opener
Small mirror (why just kill zombies when youc can look good at it too :D)
an I-pod with a charger.
And a small hatchet for busting stairs/doors