
Most of my students are just fine, 20-40 years old females mostly.
I did computer sales and repairs before but that was crappy job. Also I did work little time at car repairs, but my skin don't like to be exposed to oil at daily bases, so had to quit that.
Travelling is quite big part of job, 200-1000km twice a week, weeks off home so I know hotels quite well.
Also I'm boss of computer department, but for that I don't have much of time, so I delegate those tasks to someone I can fool for it

Teaching part is quite nice, it is very rarely same day twice, quite rewarding job in that sense. Surely not job for everyone, but if uncomfort is not an issue and one likes to see bit of 'world' this is one of best jobs.
I don't think that I could do job where you come to same room each day, two weeks in one place is absolutely maximum to me, after that I start being restless

Teaching part is dead easy, working hours are not bad 9am to 3pm and salary is quite bit more than average due to travelling compensation so I would recommend this job to anyone, but not everyone can stay away from home most of year.