Creative ideas sought for my wife’s driving mistakes

Hello municipality As you can recognize by the photos, my wife doesn’t know exactly where the bumper is at at the front. On Friday she made a brief acquaintance with the wall in the company garage. Yesterday again, only a little longer! She apparently striped the wall at the driveway to the 2nd floor. I don’t want to start a discussion about the driving lights of my wife or other women here, but gather ideas on how to prevent this in the future. Another car (Corsa or Polo) is not in question.. I have already asked for parking sensors. Unfortunately, there are only those with the rear and cost more than I want to spend. Maybe one of you has ideas about what to do against it.