Ahhh, amateurs. I love some of these ludicrous comments. You have to be prepared NOW, not wait until T.S.H.T.F. / T.E.O.T.W.A.W.K.I. (look it up if you don't understand).
A few survival tips:
B.O.B. (bug out bag) stocked and ready to go. You'll need: water of course, and high-calorie non-perishable foods. Someone said peanut butter - it's used in Africa to treat dangerously malnourished kids because it is calorie incarnate, and it will keep w/o refrigeration. Honey is good too - it keeps, almost literally, forever. Remember - you need calories, not nutrition; this is about short-term survival. If this is a long term EOTWAWKI event you're pretty much dead already.
You'll also want a fire source, a giant poncho, gloves and extra socks, antiseptic & bandages/plasters, painkillers (just paracetamol/aspirin etc), a towel (of absolute importance!), a WOOLLEN blanket (NOT synthetic rubbish), bicycle repair kit & tools (and the knowledge to use them), a crank-powered radio/torch doohickey, a good folding knife/multitool, and a straight fixed-blade knife.
There's lots of other things to put in a B.O.B., and it'll vary with the climate/season you find yourself in. But once you have a B.O.B. sorted (and remember - you'll be carrying this. Not much good if you find after 30 mins your shoulders are getting blisters from the straps and your back is sore - practice with the pack!).
When considering equipment - you want your equipment to just be regular household stuff. If you go running around in this kind of situation *looking* like you're stocked up with the best and latest hardware, you're gonna get robbed or worse. This is a survival situation and if some other guy thinks he has a better chance with your snazzy fish-scaling, bottle-cap opening, compass-hilted survival knife with tempered carbon steel, he will gladly kill you and your family and take said survival knife. It's a good idea to have clothing that generally looks pretty scruffy too. Natural fibres, trusty sneakers (you'll want a pair of boots in your pack, but mostly outside you'll wear sneakers. You need to move quickly, not kick people in the shins - and steel caps will just tire you out).
And please, morons, don't just come up with some bullshit plan about stealing supplies and weapons and so on. You and every other moron out there who hasn't prepared is gonna be looting like crazy (hurr durr I'm gonna steal stuff). The only thing more dangerous than zombies: are panicked police, soldiers, storekeepers, other looters, and pretty much any human. YOU WILL GET KILLED. Governments STRONGLY discouraging looting - not because of cost (c'mon, in disasters we're looking at billions/trillions of dollars in infrastructure damage. What difference is a frickin' few TVs gonna make?!) - they discourage it because people GET SHOT and then you get riots, revenge killings, etc.
Get your BOB together, that's step one. Step two - stay put. Hole up in a location you know
intimately, barricade doors and entryways (but ensure a quick exit - barricade the stairwells and doors, but have a rope/sheets tied together that you can climb off the balcony, for example).
Hopefully, an outbreak shouldn't take too long to blow over and your supplies should help you last until government bodies get their act together. If it's looking like that ain't gonna happen, now you are really screwed. Your best option is still to hold up as long as possible - hopefully infected/other humans will have spread out and the streets should be clearer. Get a bicycle and pedal your arse the hell out of dodge. Your BOL (bug out location) needs to be somewhere relatively remote (you'll still need to be able to get to a large town/small city and back easily by bicycle within a few hours - if you ride at 20kph, trying to find somewhere within 50km from a regional centre is good), and you'll need access to a clean renewable water source. It helps if the place is somewhere you are familiar with as well.
For example, I live in Sydney. When it came time to get to my BOL, I'd either head for my parents' place (in the mountains 80km to the west - easily doable in 1 day by bicycle), or if I found that too hot I'd hole up a night or two there and keep heading west (heading for Bathurst/Orange). I've lived in these places before, so I'm familiar with the roads and the regional centres - this is important because stupid shit like getting lost will get you killed. DON'T just think 'hurr durr I'll go to the country'. Yeah right. Where? Is there water? Do you have relatives/friends out there? Is it feasible that you could bicycle there? Are there places to hold up overnight if it takes more than a few hours? You gotta plan this WELL ahead of time.
Now that you've thought about the above, AND ONLY NOW, can you start considering weapons. And I'll leave that to more capable people.
Ahem.
Thank you. And good luck in the coming apocalypse.