I considered renting a car to drive to SLC for the early flight to BOS tomorrow, but ultimately decided a 5+ hour drive in the snowy dark wasn't that appealing. My brother gets all the good sibling points for making not one, not two, but three trips to the airport. (One to drop me off, during which he hung around long enough to know I wasn't going to get off the ground, so we went home. Another to drop me off for real, which he did. And finally, one to pick me up when the last flight didn't arrive.)
The earliest I can possibly arrive in BOS tomorrow, at this point, is 10PM. Here's hoping.