These days Vicki and I try to only do visa-free travel. That is, we only visit countries that allow us to enter without requiring we go through a cumbersome visa process. Some countries still require that we show up at their consulate somewhere. Once there we have to fill out a form, present a picture, and sometimes show plane tickets, hotel reservations, bank statements, a detailed itinerary, and so on. Then we have to wait a few days, leaving our...