The flights are easy, even on crappy airplanes. It's the same city that would drive me crazy. I tried to break up some of the monotony by staying at different hotels, eating at different restaurants. ABQ, PHX,LAS, LAX, SLC and ORD were just a few that I had to fly to every month for a couple of years. Now I barely visit twice a year, but in any of the hotels I frequented I'm still recognized by majority of the staff when I walk in.

But I'm definitely numb to the airplane side, not to mention boring rental cars from National or Hertz.