At first, I hesitated to invite my mother-in-law on a trip with my wife and me. Now, we travel together every year.

At first, I hesitated to invite my mother-in-law on a trip with my wife and me. Now, we travel together every year.

I go on trips with my mother-in-law every year. Our unlikely adventures have become a treasured tradition.Ash JurbergEach year, my 75-year-old Texan mother-in-law comes on trips with my wife and me — usually in the US.She's outlasted partygoers in Nashville, walked miles in DC museums, and had beers in Australia.These trips have transformed our relationship from in-laws to enthusiastic travel companions.I met my wife, Cecilia, on a business trip…