So as luck will have it (and it will, it will), I'm the latest target for early arrivals. My time frame for the furnace guy was noon to 2 pm, but they called at 9:45 to say the technician had time available due to a cancellation, and could he come over and do it earlier? In this case, of course, they always call to ask, and getting it over with this morning was totally fine by me. So I said yes, and they said he'd be there in half an hour. Then he showed up only 20 minutes later, but that was fine, too. So here we are. And here I sit while he gets the job done.