I'm reviewing my travel journal and, after a few nations' worth of notes, I've started to notice something. I notice it more and more, the further back in time I go.
Any time I land in a nation, or when I'm about to leave one, I purchase a dozen postcards and take an hour in a coffee shop to write them all out and address them to friends. I was about to say "my friends in the States" but I have at various times had penpals in other nations. At the very least, a few people who collected postcards and traded them with me.
This gets to the core of what I realized: I'm not in touch with most of these people anymore. I look at the names of people I wrote in late 2010, when my wife and I toured SE Asia. I'm still friends with a few of those, but some of those relationships have petered out and veered to the wayside. In early 2009, when our families went on a cruise, I wrote postcards in France to people I struggle to recall. They were significant enough for me to note in my travel journal, but now they've crumbled to dust and have no property in my life.