I personally use a Maxpedition Vulture II as my large BOB. I have several Maxpedition and Tactical Tailor MOLLE pouches/organizers on it. The bag is a great size and has more than enough MOLLE webbing on the sides, back and torso strap. I highly recommend both the bag and really any Maxpedition or Tactical Tailor gear. If I have the time, I will post the inventory of my bag and some photos.
The lists below were copied from a thread started by Architect over at the Yard forum. I think it is a great place to start. I have been using the list to fill out my BOB with the few things that I didn't think about.
This is what Architect said about a SMALL BOB. (Thanks Architect!!)
(Qty) Item - Explanation
(2) Bic Classic Butane Lighters - makes burning stuff easy.
(3) 12 Hour Chem-Sticks / Cyalume Light Sticks - keep one in your med kit...nothing like trying to treat a wound while holding a flash light. Ask how I know.
(1) Quick Touch Up Knife Sharpener - knocks off dull edge.
(1) Knife Sharpening Stone or Stick - takes nicks out, etc.
(1) 3600 Calorie Food Bar - you eat it. Food is good. Calories = working body = getting home.
(1) $10 Water Purification "Survival Straw" (Aqua Mira Frontier or $20 Pro) - no drinky = no livey.
(1) LED Headlamp with Spare Set Of Batteries - frees your hands to do other stuff like fight off zombies / open doors / wield weapons.
(1) $2 Emergency Space Blanket - its cheap and works if you use it while nekkid.
(1) Rain Coat - Don't know where Howe is, but if its like Indiana....getting cold and wet = hypothermia = potentially dying = suckage.
(1) Wool Watch Cap - see above.
(1) 32oz Nalgene Bottle - you put water in it.
(1) Nesting Cup - fits on the bottom of the Nalgene (space saver) and boils water / heats food / etc.
(10) Katadyn Water Purification Tablets - don't drink untreated water.
(1) Whistle - you might want to be found if a building collapses on you, you get lost at Wal-Mart, etc. Whistles last longer than your voice.
Here......this is my current EDC (you're describing an EveryDay Carry pack) list.....
Personal Survival Kit
Clothing
(1) Cap, Watch-Type 100% Acrylic (B)
(1 pr) Gloves, USGI Leather (B)
(1 pr) Glove Liners, USGI Wool (OD)
(1 pr) Socks, Cold Weather Wool
Fire Making
(1) Butane Lighter, Bic Classic
(1) Butane Lighter, Generic
(1) Ferro Rod, LMF Scout Model
(1) Matches, Strike Anywhere in Waterproof Match Case
(1) Tinder Bottle, Film Canister with Petrol Cotton
First Aid & Hygiene
(1) Antibiotic Ointment
(6) Anti-Diarrhea, 2mg EXPIRES 1/13
(X) Bandages, Assorted Adhesive
(6) Benadryl, 25mg EXPIRES 2/14
(2) Gauze, Sterile
(1) Hemostatic, QuikClot Combat Sponge
(8) Ibuprofen, 200mg EXPIRES 1/13
(1) Light Stick, Cyalume
(2) Sanitation Wipes, Playtex
(3) Sanitation Wipes, Germ-X Singles
(1) Splinter Remover
(1 pkt) Tissue, Kleenex Travel Size
(1) Tourniquet, North American Rescue CAT
Food
(1) Emergency Ration, 3600 Calorie Mainstay
Firearms Related
(49) 45Acp Ammunition, 230gr Remington GS
(1) Handgun, Sig P220SAO with Night Sights
(6) 8rd Magazine, Sig
(1) Weapon Light, Streamlight TRL-1
(4)Batteries, SureFire CR123
Navigation & Signaling
(1) Compass, Silva Starter
(1) Flashlight, Streamlight Nano
(1) Head Lamp, Coleman LED
(6) Batteries, Energizer AAA
(1) Marker, Industrial Sharpie
(1) Pencil, Mechanical 0.5mm
(1) Whistle, Fox40 Micro
Shelter
(50f) ParaCord, 7-Strand 550
(1) Poncho, Emergency
(1) Survival Blanket, Adventure Medical Kits 2-Person
(1) Survival Blanket, Emergency
(1) Trash Bag, 1Mil 39 Gallon
Tools
(10) Duct Tape, Wrapped on Business Card
(1) Fixed Blade Knife (Gary), SRKW Rodent Solution
(1) Sheath, Kydex
(1) Fixed Blade Knife (Gary), SRKW RMD
(1) Sheath, Kydex
(1) Knife Sharpener, Gatco TriSeps
(1) Knife Sharpener, Gerber Ceramic
(1) S-Biner, Nite-Ize
(1) Swiss Army Knife, Wenger Highlander
Water
(1) Canteen Cup, USGI
(1) Emergency Water Filter, AquaMira Frontier
(1) Pre Filter, Bandana
(1) Water Bottle, Platypus 1L
(1) Water Filter, Berkey Sports Bottle
(1 btl) Water Purification Tablets, Aqua Pure
(2) Water Purification Tablets, Katadyn
(1) Ziplock Bag, 1 Gallon Freeze
Just use this or use this as a starting point and I don't think you will go wrong.
Also, below is inventory for a Belt Kit, copied from Architect as well:
The Belt Order
The Belt Order is designed as a "mini-survival kit". This is to be on you at ALL TIMES! You can leave your ruck in camp while you forage / set up traps / fish or hunt / use the bathroom / scout / etc as long as you do not take off the belt order! The contents of a survival belt order usually include:
1. USGI or Improved Civilian Equivalent Pistol Belt - this is NOT used to hold up your trousers. This is to be worn OVER your trouser belt.
2. Handgun Holster
3. Handgun Magazine Pouches
4. PSK (Personal Survival Kit) with:
4a) USGI Canteen Cup.
4b) 550 Cord (50 feet in ADDITION to the 100 feet in your BOB).
4c) Survival Straw.
4d) Lighter (this is in ADDITION to the lighter in your BOB).
4e) Firesteel.
4f) Tinder (this is in ADDITION to the tinder in your BOB).
4g) Knife Sharpener.
4h) Space Blanket.
4i) Bandanna.
4j) Compass.
4k) Water Purification Tablets (4 in addition to the tablets in your BOB).
5. Small & Medium Fixed Blade Knifes (more on this later).
6. Trauma Kit (more on this later).