One of the many changes that comes from having a child in college is that we no longer have two weeks of spring break to travel together as a family. Knowing that this day would come, my husband and I were diligent about planning family trips as soon as our kids were old enough to endure long flights. We took them to Australia, Africa, South America and Asia to expose them to different cultures, landscapes and people. But we also made a point of exploring America, with road trips in California a...