I'm 70 years old. My husband, Tim, is 66. For most of our lives, each of us lived and worked in California. Today, our home is wherever we and our 30-inch suitcases are.

In short, we're senior gypsies. In early 2011 we sold our house in California and moved the few objects we wanted to keep into a 10-by-15-foot storage unit. Since then, we have lived in furnished apartments and houses in Mexico, Argentina, Florida, Turkey, France, Italy and England. In the next couple of months, we will live in Ireland and Morocco before returning...