I wrote 3 quick Quora answers. I prepared two more as drafts, so I can record another training video about formatting my answers on Quora.
I wrote, formatted and sent a broadcast to my email list. I asked for advice in picking the title and informed them about my webinar.
On a train back home I brainstormed the outline for my webinar and created a presentation in PowerPoint according to it.
I slept 5 hours. I napped 20 minutes on a train to work.