Hay Mr IT consultant,
I might be over the top here but I can fix anything if I have the tools and equipment available and I hate paying someone to do something I can do myself.
I always carry a snatch strap and shackles, a good 12 volt pump, tyre plugs if you have tubeless tyres or patches and leavers and bead breaker if you don't.
I made a contraption that goes in the tow bar socket which you can use your jack against to break the bead on a tyre.
I also carry welding equipment. Just some leads with earth clamp and rod holder and a welding lens and welding rods.
I can hook both batteries together with my HD jumper leads and run a pretty hot weld with them.
You can make a welding mask out of a beer box and tape the lens into it if you want.
I also have a winch which comes in handy for clearing tracks solo. Also an all steel short handled round nose shovel, bow saw, axe or tomahawk and a couple of good torches.
A good quality set of tools, enough to strip the car if need be, a few spare nuts and bolts, spare fuel filters just in case you get a dirty load of fuel, spare glass bowl for fuel filter, spare fan and air con belts, spare radiator hoses, spare heater hose, hose clamps of various sizes, cable ties, tie wire, tape of various types, insulated wire, test lamp, multimeter, 12 volt soldering iron, spare power stearing fluid.
My dryazabone and hat.
Wow, when I look at that list I,m thinking how the hell did I fit all that junk in the car, but it's all in there and it travels with me everywhere even to and from work.
And if I'm going on a trip I will add to this.
You might say that you don't need all this junk but I'd disagree.
On our trip to Cape York the springs fell out of the center of the clutch about 100km south of Charters Towers and locked it up solid. I don't know why, it only had about 470,000 kms on it!
I had to drive without a clutch from there to Mareeba behind Cairns before I could change it. We spent a very pissy day changing the clutch at a mates place.
On the way to Mareeba it threw all the fan belts off, I blew a heater hose and hit a roo which snapped a spring on the bike trailer.
I had the heater hose to repair it, I had the spare belts, and we used a guide post, cable ties, tape, wire and a ratchet strap to fix the trailer which did about 600 kms like that.
So you see if you have the right gear you don't have to spend the night on the side of the road waiting for someone to rescue you.
Cheers
Mick