The third part of the invitation was to write this. I covered what I did, and some of what I learned. I’ll add a bit more here.
I certainly was clumsy working with XE, and despite working my way through the course, I realize I have a lot of learning to do in order to become more familiar with how to use XE. While I got a basic session going, depending on when I started it and what I was experimenting with, I sometimes found myself with events that never went away, such as a commit or rollback with no corresponding opening transaction.
This T-SQL Tuesday was a bit broader in scope, so it has been interesting watching people respond.