I've delivered Firstborn to his school.
I've delivered my car to the shop.
I have returned home.
Starting at 8:00 p.m. tonight, we will undertake The Great Software Switchover. With any luck, we will emerge triumphant sometime before dawn. Admittedly, that's not the way to bet, but it could happen. Hypothetically. Maybe.
So right now, I'm going back to sleep. Because at my age, that is what one does to prepare for a long and trying evening.