Also have the OEM "envelope" net. I have never had one of these and used to think they were stupid. I was totally wrong - this thing is great for groceries and misc small stiff. Very handy. I saw another member thread a bungie through the bottom of the net to each of the D rings to give it more rigidity. It's a great idea.
Since this box did not hold the massive amount of gear I had in my duffel, I had to settle for a small clothing bag outside. I sort of like this model actually. The clothing module gets changed out depending on the season. Right now it's packed full of winter clothes and one spare set of regular clothes. Having a backpack is also nice because if I need to ditch the car and walk back somewhere, I can empty it, grab clothing/food/water/survival stuff/etc and head out on foot. My FAK is in the tool bag next to it.
Again paranoid of stuff flying up in accidents. The backpack and FAK are clipped with a biner to a doubled up climbing rated sling, and binered to the D ring. The handles I am using to clip them too are a weak point here, but I may revisit that.
Cover it all with a black wool blanket. really helps disguise there is anything in the back when trying to look in (hard to see anything). Also good for emergencies, camping, etc.
Pics of the rig
If anyone is interested, the case hold the following (probably missed a couple things):
Recovery Bag
Smittybilt Hitch shackle
ARB snatch strap
Tree saver (for bridle)
Regular tow strap (soft ends)
2x shackles (3/4")
Warn strap/line dampener
Tools / misc automotive
Pretty big tool bag - most everything you'd need for field repairs (not going to list it all)
VIAIR 300P Portable Compressor (takes up a lot of room)
Small take down snow shovel
Small regular shovel
Sven saw
Bat (never know haha)
Paracord (~100')
More ratchet straps
Thick rope 25'
10x10' tarp
High vis safety vest
2x road triangles (break down)
2x road flares
Jumper cables
Survival Gear
Fishing kit
Metal pot
Iso butane stove
Iso butane canister
Canteen w/ metal cup
Goretex Bivy
SOL Bivy
2x thin painters drop clohts (shelter)
2x cheap space blankets
1x thick space blanket
Misc signaling stuff
Fire kit
Sawyer squeeze water filter w/ extra bags
3L water bladder and hose (empty)
Bunch of food and snacks vacuum sealed in a bag
TP
Knife and razor