My survival list/plan (also my Zombie Survival Plan):
-Multipurpose clothing (cargo pants, tee-shirt, hoodie, knee-high rubber boots, rain jacket, wool socks)
-Hiking backpack
-3 knives of different sizes (small, medium, and large)
-Flint and matches
-Needle and fishing line
-Basic First-Aid
-Crank-powered flashlight
-9mm Pistol
-Climbing rope
-Crowbar
-Water bottle (possibly with personal water filter)
-Granola bars and other similar things
-Small set of screwdrivers and wrenches
-Possible crank-powered radio
-Mountain bike
Head to the nearest store and see if I can stock up on different kinds of bars as well as pick up different types of medicine. From there, I'd head to the nearest library. There are 3 reasons for this. 1. Who holds up in a library? Minimal chance of being looted and being occupied. 2. Great source of fire fuel. 3. Apart from entertainment, many of the books can provide information in cooking, medicine, survival, and other useful topics, which would be great to reference if the internet or power goes out. After securing and fortifying the library, I'd make another trip to a store to try to get as many cooking staples as possible. I'd then return to the library and hold up there. I'd only leave to get more supplies, absorbing as much info as possible, and possibly creating a survival guide from pages of the other books (which I could take with me if/when I leave). Upon leaving, I'd head south, where I wouldn't have to worry too much about the cold and snow. If it's zombies, I'd try to get a boat large enough to hold a few people and to start a garden on but small enough to not rely on an engine. I'd stay relatively close to shore in case we run out of food and the garden fails. The reason for the boat would be that, realistically, zombies can't swim. They might be able to float, but I doubt they'd be able to climb onto a boat. Also, assuming their realistic, this would be one of the easier types of apocalypse to survive, as you'd only have to wait it out until the bodies decompose. This would take about 6 months (two years tops) for the majority to die off. Then it would just be a matter of good security and personal safety to prevent adding any more to their ranks. By year three or four, all the zombies should be gone as long as no more people are infected.
As far as traveling companions, I'd attempt to keep the number below 4. It'd be a requirement to have a similar survival kit as I do (modified with personal needs). That way, each person as the essentials in case of separation or if more are needed.