Faster van washing.!!!!!

We have just purchased a Karcher window vac, this was bought obviously for cleaning the windows at home and does a brilliant job, so much quicker and no streaks.On looking out of the window (now gleaming) at hubby washing the motorhome before our trip i went outside and much to his amusement used it on the van after he had finished rinsing, it was so much quicker, van walls and windows gleaming he just had to go along the rounded sides  with the chamois and job done.I just thought i"d pass this on as it saved so much time and did the job well.