Ahh, the zombie apocalypse. This is one topic that, surprisingly, brings out a lot of good ideas (and some bad) with practical applications. Even if one doesn't experience the end of civilization via zombies (b/c SkyNet whiped us out first), the steps needed for preparation in the event of a major disaster are very simliar. Here's a few more thoughts to toss into the ring:
The Bug Out Bag (a.k.a. BOB) - just Google that and see what you come up with. Everything from water to MREs to hatchets to flares are on there. I say prep a BOB for each vehicle and an extra one in the house for more weapons (particularly ammo).
Be mobile - you know, as awesome as it would be to have a concrete bunker with 20 years of food, it's best to be at least somewhat mobile in the event your neighborhood gets overrun and you need to exfil pretty quick. Having a motorcycle isn't a bad idea since you can get away faster than if you had an F-150 or a Suburban. Hell, having a Malibu or a Fusion is better than the trucks (less space, yes, but much better gas mileage and better acceleration).
Don't rely on guns - zombies will move to the sound of loud noises, and in a full blown apocalypse, I doubt anyone will be making more bullets. Guns should be a last resort only. Blunt weapons like axes, baseball bats, shovels, and pieces of wood (2x4s can REALLY hurt) are preferable since you don't have to reload them.
Alliances - as in war, you'll have to fightbwith people you don't know, and possibly people you don't like. Get to know your neighbors, have rally points plotted, and be prepared to horse-trade if necessary.
And finally...
Beer - I think we can forget about this for the time being. Processed and canned foods are all that will be left until we can start farming again, though I think there will be SOME kind of fermentation going on (read: moonshine). Sure, the equipment will still be there (fermenters, hoses, burners, etc.) but the lack of ingredients will be a stumbling block. We can live off what we have until it runs out or decomposses, but we'll be very short on beer till someone starts a hop farm again.
Unfortunately, in my current position, I'd be screwed right now if it happened. I just started building pantry shelves in the basement and the new storage shelf in the garage, so I'm technically still in build mode. Beyond my Mossberg and some bottled water, I have a lot of catching up to do!