Travel fiction has a long tradition. Think Gulliver’s Travels, by Jonathon Swift, On the Road, by Jack Kerouac, and more recently, The Time Traveler’s Wife, by Audrey Niffenegger and The No. 1 Ladies Detective Agency by Alexander McCall-Smith. The list is endless. Janice Horton’s, The Backpacking Housewife, is in fine company, and although Horton is experiencing…