In that case, I'd probably try Flitz or Simichrome too. The steel wool and oil works and you might get by with a nylon brush and Kroil. IMHO, I'd go with the least abrasive option first (brush/oil), then Flitz and finally steel wool.
I've heard of but never tried just soaking the rust spot in oil and trying to wipe it off with a cloth. Worth a try....