Sorry John, I thought this is about tools for an extended trip. I have a tool box and a shop why would I want to haul tools around. It has begun to look like everywhere is a questionable area. A friend stopped by my shop leaving his truck running while he popped in to say Hi. When he walked out he saw his truck leaving the lot. The truck was found in an apartment lot not far away. All his tools were gone and the formally unused ash tray was full of roaches and the seats had holes burned. Just this year someone was burning the locks off the over head doors. That's units without a passage door. Mine are double locked from the inside. For around town I carry a pocket knife same as since 5th grade when my teacher would borrow it if she need one. Oh how times change. Steve (CTR)

Weather is breaking soon I'll see what we can do about that sub frame.

Steve, are you trying to say you live near, or drive thru, some qeustionable areas?

I'm happy to have what I need to change a tire. Anything more, I'll call AAA.

My philosophy as well. Here's an excerpt from a magazine article I wrote about saving weight… [link]

I looked over last night and found the throttle. Also feeler gauge.

A normal array of 3/8" drive sockets/ratchet/open end/box end wrenches/screwdrivers/and multimeter.  For extended trips, I put together a  pretty good collection of spare parts.  Try finding a starter solenoid or a distributor cap in the middle of Wyoming.  And if you want your alternator to work, a spare ignition warning light bulb. 

+ 1 and to fuses

Oh, yeah. Rain-X. Always carry Rain-X. And towels. 

and fuses!

I'd add a Pozidrive screwdriver to the list as it's more useful than a Phillips on a Mini.

I didn’t even consider spares...in that case oil, water, lead substitute, a tuneup kit less the coil, fan belt, oil cooler hose, rain-x And glycerin.

As the ignition system is the weak point on most older cars, I carry a spare coil, a couple of spark plug, dissy cap with leads, points, condensor and rotor arm.  

The tools to fit the above.

Some oil and water.

This seems an appropriate place to mention that along with the spare, I carry four lug nuts for the spare, quite different from those that secure the old Mamba wheels. Also always have a small metal box (KRA-40 for anyone with a long Snap-On memory) that wedges between the spare and the RH fuel tank, that holds common Mini tools. On longer trips, like to Snowmass last year, I have a bag of spares and a torque wrench.

Going all the way I could add an axe , and a magnesium block. Should be able to scavenge he rest from the car, seat foam to sleep on, headliner for a quick lean to, cordage from the seat piping etc.

Depends on the distance I am from home. Just a screwdriver and pliers in town. I have a small tool bag for when over 50 miles away. Over 1000 miles away, I go bananas. 2 spare tires and a whole long list.

As mentioned a jack and wrench to change tires my cell phone and after years of riding with a Colt 45 Combat Commander I now ride with a SIG P365 SAS 9 mm. Steve (CTR)

For the longest while, 20 years, no tools on my daily driver mini. My philosophy is I rather fix it in the driveway rather than on the side of the highway.
Now, I carry a long thin flat blade screwdriver, Philips, adjustable wrench, and pliers. That's it. I've yet to use them.

But I have to say that two years ago, everything went to sh*t. I basically replaced many if not all parts on the mini. Now the rubber is showing signs of cracking. Awful rubber parts.

I have one of those folding blow molded tool kits sold at the auto parts stores. I added a cheap DMM, tie wraps, and tape. It fits under the back seat. and I have not needed it yet.  In back is a stock wheel, lug nuts, jack, and ratchet wrench. I have 13 inch wheels and 8.4" brakes, so should I get a flat in front I would just have to change two tires. And a RV AAA card.

I got all excited and put together several tool rolls with all of the wrenches and sockets and screwdrivers and spares that I thought I might need. I should probably pull them all out of the boot and check on them someday.
They've been in there for about 12 years. The only ones I've ever used are the lug nut socket, breaker bar and torque wrench.

Aside from a spare wheel and tools to change it, just a credit card and an RAC card.

I see the Mini as being no different to the modern daily in terms of reliability.