Thanks for the comment (and the recommendation), Dan.
I think it depends on whether you want to apply it to your writing ability, or to the job application process. For the former, you may want to make it harder by making a list of obvious adjectives and verbs (“nice”, “to say”…) and systematically avoid those in what you write. And/or set yourself tough word count targets — saying something in lots of words is easier than doing it in few.
For the latter, one idea might be to place yourself in the shoes of the hiring person, and thinking of the hardest questions/tasks you could give candidates. (That in itself is not easy, but imagine you really want the best of the best candidates to join.) Then develop an approach to respond to these self-inflicted tough challenges… a bit like the plaster cast on my dad’s ankle. (It will be coming off tomorrow! :-))