But here's what happens when I go running through three nations. I've got twenty dollar bills from the US, New Zealand, and Australia all in there. I won't remember to swap them around each time I cross a border, so I figure I'd better keep all three for these two months in the southern hemisphere.
True story; funny story. This is actually a brand new pair of shoes. I left my old pair on top of a recycling bin in San Francisco. They've still got some life as normal shoes, even if all the spring has gone out of them for running. Well, as I was stuffing the stack of twenties into my new pair, I realized I left the twenty in my old pair.
I wonder if the next wearer will ever find it.