What's in my bag? (And wait, what *is* my bag?)

I've settled on a bit of a peculiar everyday setup, driven by my choice of devices and some of my particular needs. At the encouragement of some internet friends, I figured I'd write something up to go through what I use, in case others find it interesting or useful. As a note, this genre of posts on the web can at times encourage consumerism, and I'd like to be mindful of that. So right up front,…