Hi Reader: I've always loved to travel. New sites, new people, new food, and so many new things to draw. However, my last international trip was somewhat of an exception. I was invited to a 2-week residency at a lovely school in Hanoi. Ordinarily, I would be excited at this opportunity to visit Vietnam for the first time. However, the trip was on the heels of several other long international sojourns. In the previous few months, I'd been invited to Basel, Prague, Kuala Lumpur, Doha, and...