1: AMMO - Lots and Lots of ammo.
2: If goblin/creature/whatever, took 20 rounds of 147gr 9mm JHP's and didn't even blink, then the old double barrel 12 gauge loaded with birdshot you brought along isn't going to help.
3: Use a weapon that has a history of making a mess. I recommend the M2 HB, cause .50 BMG rounds took apart Nazi and Japanese aircraft in WW2, they'll do wonders on Mr. Undead as well.
4: Never assume Mr. Undead is really dead, burn him after you tear him apart.
5: After burning, hammering the remaining bones into dust with a 10lb sledgehammer isn't really overkill, it's insurance and a damn good workout.
5A: Overkill is a good thing.
6: After finishing off previous task, don't worry about washing up because he does have friends.
7: When in a group, never be the first one through the door. That said, never be the last either.
8: If you are alone, don't just walk through the house like a dork, use your environment. Lead with a piece of wood, better splinters in your hand than losing the hand altogether.
9: Whenever it is prudent, RUN and don't look back because the murderous-flying-zombie-vampire-werewolves ARE gaining on you.
10: Get to a location that is solid and defensible from all angles, and if you are unsure about a location. IT IS VULNERABLE.
11: AMMO - Lots and Lots of ammo.
Keep these 11 rules in mind and you too will survive Halloween. Special thanks to Labrat, Stingray, Popehat, and OldNFO.