Rule #1: If the person has been bitten, they are no longer your friend.
(Best thing to do in this case is to put them down before they turn and attack everyone. remember: 1 zombie turns to 2, 2 to 4, 4 to 8, 8 to 16 and so on.)

Rule #2: Move in groups of 6 to 8.
(Small groups make it easier to see who has and has not been bitten. It also makes rationing and watch shifts easier. Also very important rule. Get people who GET ALONG. You dont want an argument to break out.)

Rule #3: Guns are fun, but melees are your friends
(Guns will run out of bullets. So grab something balanced and easy to weild more that 6 times. Also something with reach You dont want to get up close and personal when bashing in a head.)

Rule #4: Silence is Golden
(And can be the line between life and death. Cell phones remain on silent. Stay away from things that make alot of noise or areas that echo. Also, duct tape will ensure the easily spook remain as silent as possible.)

Rule #5: The bigger, the better friend
(Big cars, even if they take up alot of gas, can mow down alot of zombies. In my area we have Harvesters, tractors, seeders and the knowhow to hi-jack them.)

Rule #6: Main Roads
(AVOID at all costs. Main roads are the first to get congested and will most likely be the most overrun with Zombies. SO, back roads. Take back roads and get away from the over populated areas.)

Rule #7: Big towns and Small towns
(Big towns are not advised, though they have what is best to survive. Food, water, and bandages. Though its not advised at you stay in big towns longer than necessary. They will have the most infected.)

Rule #8: Stores
(Good Idea, really good idea, but you have to understand, everyone is thinking the SAME THING. So where people are congregating, arguing, yelling and fighting there will be....? YES ZOMBIES.)

Rule #9: Bombs
(Not all bombs are accessable, but you can make them. You can go online and find many ways to craft bombs. Molotov cocktails are easiest to make, and are great for blocking escape routes. Fire is your friend during a Zombie apopcolypse.)

Rule #10: Law and Order
(At this point are none existent. Though killing random people for no reason isnt advised either. If you see such people then feel free to kill them. Dont leave them alive for the zombies to attack. It will only cause more problems.)

Those are my rules for now. On the off chance there are special infected like on Left 4 dead, observe the rules for them. Thank you and have a nice day.