For those of us who do much of our adventuring alone, one down side, one of the few I can think of, is having no one to snap real photos of us. Occasionally I’ve done the timer thing but, for the most part, they just seem a bit sad.
On a trip in France, admiring store windows in Beaune, it sometimes seemed I was part of the composition. So then, and again in Paris, I took a few pictures to remember the days. It now occurs to me 8 years later I've never thought to do it again.
There's more of PortMoresby’s here.