However, I would have liked to have learned this a little sooner…
Gmail lets you insert inline images. It has since 2009. I did not know this, nor how to accomplish it, until TODAY.
Turns out, you have to go to settings, then labs, then scroll waaaaaaay down and enable “insert images” before you can. Not terribly intuitive, and not terribly nifty, considering.
But now I know, and you do too. Hooray?