It sounds like you had a very good, if tiring, con day. Yay! :-)

I have had a long day. I have a lot of plates spinning at once right now, and it's just too much sometimes. For that reason, I'm counting writing essay questions for my students for the fall as my writing for the day. In its own way, it's creative, and it was certainly mentally taxing; my brain felt tired when I finished them.