This is a good topic. In 2012, it's rumored that life as we know it is going to end, and the Mayans predicted Cortez's arrival (well, sort of). What if a zombie apocalypse will occur in 2012? (Dec. 12, I believe)
That means we have four years to prepare for the inevitable. If your zombie plan isn't ready by then, it's GAME OVER, man, game over.
That said, here's my zombie plan:
Assuming I will hear about the zombocalypse on the news or on the Internet, I will assume that the country I live in (America, land of the Big Mac) has been overtaken by anarchy, and thus schools and the like will be closed. First I'll start by barricading my house, giving me a chance to gather up the essentials, such as food, water, and supplies.
My father has an old machete he keeps in his drawers as a sort of souvenir, so we'll grab that and make our way to our local grocery store first. We then set up walls, barricades, and the like to make sure the zombies don't get in. We could survive for a while in the store, and when the food and other supplies run low, we could make expeditions looking for guns, weapons, survivors, and anything else we need.
Once we've gotten everything we need, we abandon the store and hijack a car with plenty of gas in it. We then make our way all the way up to New York (not the city, the country part of NY) where my 'hippie' aunt and uncle live. They are excellent farmers, the place they live in is fairly isolated but not too far away from civilization, they built their own house, and they are almost completely self-sufficient. Me, my father, my aunt and my uncle make a life for ourselves there, venturing out only to check on the current situation of the world and to get guns and supplies from town.
There you have it. It may need some adjusting, but like I said, I have four years.