I carry three main tool boxes plus my shoulder bag. This is from memory...
**Bucket - 5 gallon drywall bucket with "bucketeer" cover.
18V DeWalt 1/2" hammerdrill
1/16" to 1/2" jobber length drill bits
1/8", 1/4", 3/8", 12" long drill bits
misc masonry bits including 3/8"x12"
hole saws, 3/4" "naileater" bit
16' & 100' tapes, 1 3/8" selfeed bit
3/8" socket set plus adapter for drill
3/8" to 3/4" combination wrenches
levels, plumb bob, utility knife, combo square
studfinder, 50' fish tape, hammer
12" adjustable wrench, 10" vise grips
coax cutter, 6 in 1 screwdriver, prybar
"sawsall" blades, cable ties, outlet templates
nylon string, silicone seal, 2-way radio
leather gloves, coathanger, chalk line
**Kobalt 3 level plastic toolbox
top bins***
UR, UY, UG, panduit 8p8c modular plugs (RJ45's)
6p4c, 6p6c, handset modular plugs, 110 blocks
misc adapters, soldering iron tips, compass
SNS6, SNS6QS, SNS59 F connectors, pens
doublestick foam, velcro, offset screwdrives
SAE and metric hex drivers, bullseye level
super glue, splinter tweezers
middle tray***
Screwdrivers, scissors, linemans pliers, volt tic
needlenose pliers, dikes, chAMP tool, small robogrip
Klein crimper, tamperproof bit set, Plato cutters
portasol butane soldering iron, solder, tape, lighter
small and large utility knives, 6" adjustable wrench
7/16" combo wrench, hemostats, flashlight
coax and wire strippers, small ziplocks of misc screws
bottom bin***
microscanner pro with modular/coax ID kit and many adapters
200FP toner probe, lil buttie buttset, punchdown tool
SnapNSeal tool, modular crimper, outlet tester, stapler
fluke 79 DMM with current adapter, staples, circuit finder
handsaw that uses "sawsall" blades, wood and cold chisels
modified small RadioShack audio amplifier, mod-adapt,butane
telescoping mirror, Altoid boxes with misc parts
***cabbage case briefcase
20G HD, CD-ROM, 6 port hub, fans, heatsinks, PS2 mouse
Lantronix LPS1 and EPS1 printservers, canned air, IDE cables
3C509 and 3c905 NICs, misc PCMCIA cards, power "Y" cables
PS2 and HD15 extention cables, power cords, 3.5" floppy drive
network and phone cables, label maker, power supply fans
small box of computer case hardware, RS232 tester and adpaters
***Shoulder bag
laptop, charger, PCMCIA cards, misc cables, GPS
Fluke NetTool IL, digital camera, NIMH batteries
spare floppies and CDRs, software/diagnostic CDs and floppies
Pocket Ref, small DMM, DB9 to RJ45 adapters (nulls and straights)
JP1 IR remote programming cable, modified Cinema7+ remote
keys, mini headphones, earplugs, pills, powerbars, pens
checkbooks, business cards, notepad, band aids, spare glasses
various turnarounds, adapters and more cables
$50 travelers check
*****Stuff that stays in the trunk
18v DeWalt recipro saw, Greenlee extensions
3/8" x 24" masonry bit, 18v DeWalt car charger
6v lantern, paper towels, misc wire
cases with mounting hardware and wall jacks
*****Used as needed
Brady labeler, 1 - 2.8 gHz spectrum analyzer
PentaScanner, Fluke 97 scopemeter, Wing folding ladder
Progressive cable tracer, power tools, bigger hammers
TelScout TS90 TDR, laser level