1) Don't leave your house! I know you need milk, and the grocery is just down the street, but you should not leave your home during an outbreak of flesh-eating zombies. Only as a last-ditch option, should you venture from the confines of your home to confront the horrors outside. Stay indoors and remember the THREE "F"s! FORTIFY, FEND-OFF, and...FLAMETHROWER!
2) Choose the weapon that is right for you. If you are lean of arm and shoulder, then perhaps a chainsaw is not the correct choice for you. Look instead to weapons that fit your frame and ability, such as a handgun with alot of penetration, such as the .40 Baby Eagle. If you happen to be a beefhouse of muscle, then a melee weapon will suit you just fine for close encounters. Remember: anything can be a weapon in the right hands. Take a shovel out for a test run! Smash a few heads! See what fits you best. It is also wise to procure a rifle with a high accuracy rating for which to pick off Zombies from a distance.
3) Remember the Zombie Survivalist Mantra: "Aim For The Head!" It is common belief that severe head trauma is the only way to dispose of an animated corpse. This is not a documented fact! There has never been written documentation of an outbreak survivor effectively dispatching a restless dead by inflicting massive cranial damage. That being said, it is still the most likely course of action that may keep you from being devoured. The unknown cause of Zombism must activate the brain enough to cause it to begin the chemical and bioelectric reactions necessary to move the musculature. These biological reactions take place in the brain. We see the typical zombie behavior mimics a very animalistic drive: hunt, eat, and repeat. I am quite sure it is only a matter of time before we see one of these filthy things following the base animal instinct to mate. Zombies that hump things may be the most disturbing concept I can conceive. Since these motor functions are dictated by the brain, then it would make sense that destruction of the brain would cause all locomotion to cease. Aim For The Head.
4) Make a short list of the people who you would put your life in danger for. Take that list and cut it in half by whatever means you must. Your "Assist List" must have no more than five(5) people on it. This is the maximum amount of aid you can supply before a Zombie Outbreak Scenario reaches it's most dangerous boiling point. You must have everyone on you "Assist List" secure, armed, and in one place before this happens. You shouldn't worry about other people on your list having lists of their own. Chances are good that they will be completely unprepared, bewildered, and open to your leadership. These people will serve a dual purpose. a) They will give you a reason to survive. b) They will serve as cattle should you need to use them as Zombie Bait.
5) Be a squirrel. Store some nuts. Have a stockpile of hard rations that will feed you and your "Assist List" for one month. There should be no need to use comfort room for rations beyond a month. Rescue and appropriate government cover-up operations should reach you by then. If you are facing a large-scale outbreak, perhaps even an apocalyptic scenario, then the level of the outbreak will have died down enough by the time your rations are depleted for you to begin foraging.
6) Movement can save your life. Multiple safehouses may be an excellent decision, barring a lack of finances. These safehouses can even be set up during the initial stages of outbreak right after the panic phase sets in. This is the best time to cautiously complete your preparations, due to an absence of official police presence and the recent removal of human residents from most locations. Your survival preparations can extend past the first appearance of undead in your region, just so long as the initial outbreak hasn't quite reached into your immediate area or so long as the individual zombies have not yet begun grouping together into swarms yet. When swarms are reported or sighted, you must have all of your long-term planning complete and be ready to settle down for a long siege.
7) Survival of the Fittest must become your new religion. God has abandoned humanity, so you must begin thinking of yourself as the pinnacle of the food chain. Zombies might be hunting you, but you are smarter, stronger, and faster than any reanimated corpse. Use this knowledge to boost your confidence, because you will not last long in an outbreak scenario if you lack the confidence to initialize your plans. No matter how many people you've gathered around yourself, YOU are the only person that you can rely on to keep you alive.
8) Forage smarter, not harder. When the time comes for you to venture forth from your safehouse to procure more rations, potable water, and/or ammunition; you should plan your mission in advance. You should have extensive knowledge of the region, so you should mark key locations that are likely to have the items on your "shopping list". Take note that many public locations (grocery stores, pawn shops, etc.) will have already been looted. These areas might not have been picked clean, but you should save them for last since they will likely have a strong zombie presence. Focus on rich neighborhoods first, since you will only have to destroy 1 to 5 zombies when you clear the house for proper foraging.
9) Remember the buddy system! Always take a buddy everywhere you go. If no buddy is available, then a well-trained dog will substitute, although poorly. This is to ensure that there will be someone present to assist you should you become grappled during an outing beyond the safety of the safehouse. Also, your buddy can do you the favor of dispatching you if you should become infected. This is the best token of friendship a person can offer. Existence in unlife is the worst fate imaginable.
10) Remain detached. Do not form close bonds with those around you, should the need arise to put them down if they are infected. Casualties are almost certain in an Outbreak Scenario, and grief will kill you as surely as a bullet or a bite. You may also have to make a decision of saving your own life at the cost of someone else's. This is the worst possible scenario, but a very possible one. Before an outbreak ever happens, you must make peace with the fact that you are the most important person in the world and you MUST survive at all cost. Your own progeny are the only exception to this rule.