What the heck ...
D700, which I use for landscape and glamour
Glamour Kit
50 f/1.4
85 f/1.4
27-70 f/2.8
70-200 f/2.8
5x SB-900
5x SD-9
8x SB-R200
6x RadioPopper Receivers
2x RadioPopper Transmitter
5x Manfrotto light stand
Toolbox with tapes, Velcro, etc.
Lastolite reflectors
120x eneloop AA batteries (for SB-900 & SD-9; one full set + 2 set of back-up per flash)
32x Duracell AAA batteries (for triggers & receivers; one + one back-up)
16x RC2 batteries (for SB-R200; one + one back-up)
Rocket Blower
Paint brush
Large & Small garbage bags
Landscape Kit
24 f/3.5 PC-E
45 f/2.8 PC-E
24-70 f/2.8 (used when out scouting new locations)
70-300 AF-S (for tight crop of landscape)
Hi-Tech ND & NDG filters
B+W 77mm & 67mm polariser
DR-5 Angle Viewer
Compass
Binocular
Whistle
Kneepads
2x Bandana / Cap
3x Small Tea Towels
Water flask
Folding stool
Beanbag
Spare socks
Spare undies

Carabiner
Tripod
Wired shutter release
Head-light
Spare AAA batteries for head-light
Small first aid kit
Rocket Blower
Paint brush
Bottle of water
Large & Small garbage bags
Wildlife Kit
Depends on what I'm aiming to shoot; but it would be something along ..
24-70 f/2.8 (it's my all-purpose & general use lens)
70-200 f/2.8
200-400 f/4
300 f/4
1.4 TC-E II
1.7 TC-E II
B+W 77mm polariser
Compass
Binocular
Whistle
Kneepads
2x Bandana / Cap
3x Small Tea Towels
Water flask
Folding stool
Beanbag
Spare socks
Spare undies

Carabiner
Tripod
Wired shutter release
Head-light
Spare AAA batteries for head-light
Small first aid kit
Rocket Blower
Paint brush
Bottle of water
Large & Small garbage bags
Car Kit
These are items I always keep in my car ...
Camera cleaning kit
Large first aid kit (scalpel, bandages, alcohol swabs, snake / scorpion poison kit, etc.)
Ice box
Water, for 3 days' supply
Power Bar, for 3 days' supply
Shovel
Tow cable
Safe-light charcoal
Mobile charger
Sleeping bag
6'x12' Rug
2x folding chairs
Foldable toilet seat
Overnight / Long trip
As I predominantly shoot Landscape, it would be my Landscape kit that goes with me almost everywhere, plus ...
13" MacBook Air
2x 500GB Hard drive, for back-ups
Camera's Battery Charger
I then have a small Tupperware in which I keep 2x spare batteries, my Lenspen and a couple of micro fibre cloths, this Tupperware goes into whichever bag I'm taking out with me.
Large & Small garbage bags.