Later: I didn't stay up super-late, but I woke a couple of times. I got up at 8:00 a.m. and stayed up for a couple of hours, then tried to go back to sleep for quite a while. I think I dozed on and off in that time.
It's been one of my days of getting nowhere fast, that's for sure.
Later than that: I found out that today was International Sushi Day. I was inspired to go out and get sushi for dinner. I found that a local Asian fusion place was doing takeout, and got eel avocado sushi. Their sushi is very good. It's funny what makes me ambitious.
I got a load of laundry done in the evening, so that was one somewhat productive thing I did.