It was a beautiful morning. I had a student come for a tutorial session at 7:30. Then I couldn't resist any longer - I had to go to the airport. I pulled the Cessna out and checked that it would start. It did, so I went out for an hour of pattern work. I am still keeping a careful eye on the alternator bus voltage, and it seems to be right in line. It was hard to quit flying because the weather was so nice.