The term 'YOU MIGHT TAKE A DAY TRIP ON ONE' can be summarized by the crossword solution WHIM, which is an acronym for 'Without Haste, Impetuosity, or Mistake'. This phrase is often used to describe a decision that is made quickly and without much thought. It is also used to refer to a spontaneous journey or outing, such as a day trip. Therefore, the term 'YOU MIGHT TAKE A DAY TRIP ON ONE' can be summarized by the crossword solution WHIM, which implies taking a spontaneous day trip.