My GHB and BOB are two very different things.

My GHB is what I need to move quick from work to home or to pick up the kid and then home. It's about 5.5 miles, figure 2 hours. I don't need a ton of stuff. It's all through city so my need for shelter, water purification, etc. is greatly reduced. If something happens and I'm at work my only goal is to get home ASAP so my GHB which doubles as my EDC bag is built around that. If we do travel out of town then I throw my BOB in the truck as it can sustain my wife, kid and I for 3-4 days.

GHB
Notepad
Pen
M&P9 FS w/ 1 spare magazine
SOG Flash II
Foursevens Quark Tactical QT2A
Spare AA batteries
Spare phone charger
USB Drive w/ important documents
Adventure First Aid 1.0
Wet Wipes
Peanut butter
Clif bars
Slim Jim snacks
Socks
Poncho
550 Paracord
Zip ties
Bic lighter x2
Leatherman Kick
Seasonal appropriate clothing/walking shoes are kept in the truck at all times

There's a bunch of other stuff that is more geared towards EDC than getting home as well as redudancies that I left out but those are the high points.

I've also completely moved on from the fantasy of bugging out to the hills and living off the land. I've got a 3 year old boy, a wife with very little outdoor skills and wouldn't be able to hump the supplies need to sustain them. Based on that, our priority is bugging in. If bugging in isn't an option or we're displaced due to natural disaster, fire, etc. I've got my BOB which is capable of keeping us comfortable for 3-4 days barring more extreme conditions. If we're not able to stay local and transportation is available then we'll load up and head to Wyoming.

BOB
Rite in the Rain Pocket Journal
Zebra F-301 Pen
Beanie
Guide Series Men's Textured Fleece Quarter-Zip Pullover
Guide Series Men's Trailhead Convertible Pant
Magnum Men's Response II 8" Boot
Socks
Super HotHands Body Warmer
Underwear
Adventure Medical Kits SOL Tinder-Quik
Bic Lighter
Zippo Emergency Fire Starter Kit
AMK Adventure First Aid 2.0
AMK Whistle
Bottle Cup Gls Stainless Steel
HEET Fuel
Mountain House Freeze Dried Entree
Spork
The Turbo II-D Stove
Werther's Hard Candy
Clothing Ditty Bag
Fire Kit Ditty Bag
IFAK Pouch
Jansport Carson 90 External Frame Backpack - Tall
Maxpedition Anemone Compact Utility Pouch
Mountainsmith Rain Cover
Navigation Ditty Bag
Tool Kit Ditty Bag
Contact Case
Contact Solution
Hand Sanitizer
MSR Packtowl Personal - Small
Repel 94098 100-Percent Deet Insect Repellent
Tooth Brush
Tooth Paste
Wet Wipes
AA / AAA Bright Orange 4 Cell Battery Case
AA Battery
AAA Battery
Ameriglo Safety Light Stick
Coghlan's 8674 Long Burning Emergency Candle
Energizer Pro 3 LED Headlamp
High Quality Ultrafire Mini Cree Q5 Led Flashligh
MAGLITE K3A016 AAA Solitaire Flashlight
Brunton Lensatic Military Style Sighting Compass
Map of AO
Coghlan's Emergency Poncho
Kelty Clear Creek +20 Sleeping Bag - Regular
Sierra Designs Sirius 3 Tent
Sierra Designs Sirius 3 Tent Poles
Sierra Designs Sirius 3 Tent Stakes
Sierra Designs Tent Bag
Wenzel Convoluted Camp Pad (Green)
Becker BK2
Coffee Filter
Duct Tape
G.I. Sharpening Stone
Gerber 45912 Back Axe with Sheath
GERBER MP600 Multiplier Fisherman 7574
Old Oakley's
Rothco 550lb. Type III Paracord 50 Feet
Sewing Kit
Super Glue
Trash bags
Zip Ties
Ziploc Bags
32oz Nalgene
Hoser Hydration Bladder by Platypus
Katadyn Hiker PRO Water Microfilter
Potable Aqua Water Treatment Tablets

That doesn't include any defensive items and I didn't take the time to list quantities. It's effectively an augmented backpacking setup.