Right, I signed up just to post in this thread.
Local emergency. Example, house fire.
1.Personal Information Management (PIM) system with backups: Proof of identity, proof of ownership, proof of insurance, qualification certificates, contact information, legal documents (marriage, birth etc) and any other documents you will need to restart your life somewhere else. An encrypted thumb-drive in a go bag works.
2. Money: Cash, checks, debit and credit cards, the information required for online banking, enough of a savings-buffer to be able to walk away. Money is easier to transport than stuff.
3. Communications: Phone/Smartphone/laptop. Being able to keep in touch with the rest of the world is invaluable in a disaster scenario. Modern phones have GPS units, maps, access to the internet, weather and news services.
4. A plan: Do not just walk out the door aimlessly. Where are you going, how are you getting there, do your loved ones know the plan? Have a backupplan and the items that will get you there. Also have a plan for what happens when you get to where you are going.
5. A means of transport: Walking is your last resort, and riding a bike is only a little better. Motorized transport is the way to go even if that means taking a bus.
Total breakdown of society event.
Lets face it, you will not make it out of this alone and anyone thinking "lone wolf with 5 items" will be more of a liability than an asset. Humans have made it this far because they are resourceful pack animals that can work as a team. With fewer people the team works less efficiently and life becomes harder all around.
One person and five items? LOL What is the survival strategy here? Go out into the woods and forage? Most people can't do that. Even with the skills and physical requirements the odds of survival are not good. Life expectancies back in the days of hunter-gatherers was like 30 years. On top of that you are leaving loved ones who may not fit the physical requirements to fend for themselves. Not Cool!
Sticking with the number 5. I choose a network of 5 families, spread out over a wide geographical area, with different skill sets, each with enough supplies set aside to make it over the rough transitional period. There should be food storage and production, security, medicine, clean water, materials for building, tools, transportation, power generation, fuel storage, library etc. You should be aiming to rebuild society, not walk away from it.
1. A Farmer.
2. Another Farmer in another location.
3. Electrician, mechanic, welder. Bonus points for having a CNC machine.
4. A doctor who knows how to do dental work and basic veterinary stuff.
5. Someone who can recruit people to fill the gaps.
6. Lots and lots of children
Lost in the Woods. My survival strategy is to get found.
1. A map
2. The skills to follow that map back to civilization
3. A way to signal for help.
4. Gear to keep me fed, hydrated, warm and dry for a few days while I wait for the cavalry
5. The cavalry on standby. Seriously, tell people where you are going, how long you will be gone, and agree on what happens if you fail to check in.