In an unusual fit of objectivity I'll get straight to the point. The ‘tool’ referred to above is, of course, the motorcaravan, and the ‘job’ is the task it is designed to perform.
Originally, I was going to refer to this task simply as ‘travelling’ but, unexpectedly, this particular certainty crumbled as the thought train meandered its way through some muddy waters.
Perhaps I started from the wrong place. Bedecked in my best bifocals, I was casually dipping in and out of MMM during the adverts on the telly.