There are some things that would lend themselves to the mobile life. Several have been mentioned already. Medical skills would always work as you could use them on the road or if you found jobs along the way as an EMS tech where you could live out of your rig and work a job for awhile.
Culinary is always good as you could cook for groups (like at meet ups) or find jobs and again live out of your rig and work in a commercial kitchen. Here you only need carry your knife kit as most of the other utensils are
already there and you only need your skill sets.
Photo Journalism would not require much baggage to be toted along. Here you may get in with some magazines to report on outdoor recreation and work remotely as you travel around various places of interest
for travel magazines. You may even publish your own magazine in such sources as ISSUUcom or others like it.
There are certification schools where for a nominal fee and a few weeks of training you could become certified in various skills. Fiber Optic is one where you can travel far and wide and make considerable money working for contracting businesses. Again live out of your rig. Requires little in the way of tools and equipment to pack along. Another similar endeavor is Central Office Telecom. (some people do both and a lot of women work in these fields)
If you like driving, you could get some level of commercial drivers license and drive point to point courier driver. This may be a night shift job for overnight delivery where you drive from one terminal to another to deliver. (no house to house or business to business delivery) Even a relief driver who floats on several routes could give 3 or 4 days of lucrative pay, and still have you living out of our rig.
If you worked in construction trades there are equipment operators who work out of Union Halls who operate
on the spot Generators, Air Compressors, Pumps, etc. Not a lot of training required. Just need someone as an operating engineer who can monitor or if phoned to adjust the output settings can perform those duties. You could live out of your rig near the job site and probably have free shore power there too.
It may not be the most comfortable work but it would pay well enough to save up enough for a new rig.
Some jobs require a couple of years of training and certification. I know one girl who repairs medical equipment and has no problem finding work. She has a Nurse Recruiter she uses to find jobs for her. Although the Recruiter specializes in finding Nurses for Hospitals, having equipment repair people she can
offer is seen as a valuable "extra" when the Recruiter calls on the Hospitals. She started out repairing Respiration Therapy equipment. She has to carry no tools and could live out of a rig if she wanted to.
She usually finds a small apartment and lives "lite" like out of suit cases and her car. She is living around
all the larger cities in the USA she wants to see and experience the life there.
Agri Business (or Farm Worker) If you want to operate a large piece of equipment, a lot of Farm Jobs are begging for workers. You could live out of your rig for if the weather was too cold there may be housing for the workers. Good pay and steady work.
You can watch the Farm Report each day on your computer and learn of jobs here.
http://www.agweb.com/agday/
http://www.agweb.com/article/where_the_jobs_are/
Working in Commercial Transportation. Depending on what you are going to be doing, whether Maritime,
Air Freight, Railway services etc. You may want to park your rig in a private (perhaps a senior) Trailer Park where it will be monitored while you are away on a job. As an example River Boat Jobs offer different schedules. On 28 and off 28. You make a good yearly wage and have 6 months off to travel and spend your money. One thing that you could have that would make your being hired easier would be a TWIC certificate.
This would cost you about $130 dollars, require you to have a couple of birth certificates with the raised embossed seal (not photo copies) and to go on line and set up an appointment and answer the questionnaire. You will have to have a clean record with the Law, and be finger printed. But many transportation industries work within the regions Homeland Security monitors. Thus a TWIC certificate will be a requirement to be hired. Even if you found work at a port freight harbor. Again, good pay, steady work or part time, and you could live out of your rig.
http://www.boat-links.com/boatlink.html .......
http://www.boat-links.com/linklists/boatlink-10.html#ads
A lot of women as well as men cook on these boats. If you have experience with equipment you may be able to find work in the engine room as a mate. Many Towing Companies still train on the job.
There are some schools that operate a week long training course that teaches you about these boats and how to be safe on them. Then they help you find work. This may cost around $700 but it is a ticket to a job
on such a vessel. In some cases they teach courses for working in a Port facility.
This Academy is in my town:
http://www.mctc.edu/workforce-development/inland-waterways-academy/
Tour Guide jobs may appeal to some. Generally the Tour company has a program the Guide learns to conduct the tour from. Here a person could migrate with he weather and travel. Once into this circuit
of work you would learn of other jobs and agents who hook you up with jobs. You could live out of your
rig in this type of work.
Convention Center jobs with companies that advertise in these environments. Convention workers if you like. You may set up displays your company owns at convention centers, present the companies literature and answer questions, hand out advertising materials, and pack up when the convention is over and move
the display to the next venue. The company may provide motel lodging etc while you are on the road so you wouldn't have to necessarily live out of your rig. But if you do this six months of the year and make a living with it, then you could live quite comfortably out of your rig during your free time.
Those would be some of my picks.
And lastly, I know a guy who wanted to be an airplane pilot. He has a disability that limits his viability in the commercial realm however. So, he flies a Cessna Sky Wagon for a Mortuary Shuttle service. (he transports dead people) from where ever they passed away back to their final resting city. He got his VFR and IFR ratings and works a few days a week an lives in a Class C that he keeps at the airport. (has shore power there
and uses the courtesy car when the airport is closed in the evening) It's his base of operations and is on call
much of the time but gets generous free time days.
His plane has a hatch door on the right side where a coffin is loaded into it. He simply flies the plane from destination to destination. He says he's happily single and laugh when he says, "I'd rather be flying". LOL
Hearses meet him at each airport to load or unload the coffin. If the weather doesn't permit flying to the area he is to go to, then he lays over in a motel room until the air is clear again. It gives him time to go look about he town where he is. He belongs to some Fraternal Lodges and visits them when laid over.
These are a few well paying jobs I would mention. There are always the work-camping or easy to get low paying jobs where you can make some bucks to travel on before moving on. But in time most people will want to get into a newer solid dependable rig.
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