A couple of thoughts, on whats been mentioned. I know a lot of it is stuff you all know, but food for thought.
plugging a generator into your house: Great idea, but make sure you get an electrician installed swich-over/lockout breaker. That way you can isolate your house from the mains, prevent any injury to the rescue and repair workers. That also depends on your generator capacity, your average little home generator isn't going to power much, so having a cord into the house to run the freezer for an hour, then the fridge, then the battery chargers... you get the idea, isn't that much of a risk. the generator shouldn't be running overnight with no one awake anyway, and be sure your battery powered CO detector is working. more power=more fuel.
Three days supply: I agree that its short, but if everyone had three days supply, that gives emergency response three days to get on the ground, so that when the food does run out, people don't panic, and things hopefully stay orderly. That said, I know that isn't going to happen, so pack away more.
Water: like firewood, you'll always need more! a while back someone posted a thing that was basically a camelback for your bathtub. more water is always better, its easier to share from surplus, never know if the neighbors might go short, and being able to give is better than having people get desperate. If you can, collect rain water.
Fuel: buy often, use often. stabilize it, and keep it cool. the new high efficiency gennies don't need much. In rural areas diesel is probably a better choice, but I assume most out-of-town folks are more able to deal with loss of power, as they are generally less reliant on it. (normal outages take longer to fix) That said, assuming you started the situation with full tanks, where would you go? best bet is to sit tight anyway, sitting in traffic just adds to the problem, and how important are you that you need to go anywhere? leave that for the desperate folks.
Urban v rural. I think its kinda a tie, in the rural setting, you can be more self reliant, have bulk fuel, grow your own food. But simply put, we can't all do that. There are too many people for that to work. At least if you live in a city, when help comes, it comes to everyone, you included. Plus its a learning experience, lessons learned from Katrina are being applied now, and lessons from Sandy will be applied to the next one.
Pets, keep in mind that on a normal day, letting the dog out might be fine, but look after them. stuff might have blown into the yard, and you never know what else has been displaced. A wandering dog might be called in to animal control on a normal day, might be shot on sight after a disaster.
Home repair, I know we all are true manly men (regardless of gender) and can spit nails into timber from ten feet. But be careful! There should never be a rush to get out and fix stuff after a storm. take your time, do it safe. listen to the little "I've got a bad feeling about this" voice. Lots of guys get hurt or killed trying to clean up, or fix stuff on normal days, not to mention during the stress of post disaster situations. post disaster is no time to be learning about tools. Some guys should just never pick up a hammer, and all home repairs should be done with duct-tape. Can that window be fixed from inside, instead of outside? It seems obvious and dumb, but there was a discovery show "canada's worst handyman" several seasons of people who believed they could build stuff, and yet somehow never knew what tools did what. The common theme what that they let the ego do the thinking for them.
Looting, I don't have an answer to this one. Easy answer is to hoard what I've got for mine, and damn everyone else. But TEOTWAWKI or little cyclone, most likely I still have to live next to my neighbors. Do I want them as friends, or enemies? Sure telling all your neighbors about your plans means some of them might want to take advantage of that, and just rob you for your stuff, but they might want to do that anyway. To them you might just be a supply stop as part of their end of the world plan. On the other hand, if it is the end, why worry? Just sitting here thinking about it, there would probably be a lot of hungry backpackers wandering around my area if the power went out for a few days, or if the coast was evac'ed. some of them would probably get high and try to kick down doors. (next door neighbor is a cop, so that should help with that problem) Until I go through it, I have no idea what it would be like. My wife has been through a few cyclones here, but she was a kid at the time, so no real memories about it besides early bedtime, and lots of BBQ.