You know it was a good day because

...you get to go to the mountain, even though your car is out of commission (long story, see the one about the exhaust pipe thief)
...you run into FLOML snowboarding, and your heart doesn't even flutter.
...you find yourself enjoying an unexpected companion: great conversation, laughs, and good runs. At the end of the day you can say you have a new friend. (Code name: 2Plank)
...you finish the day with a quite house, a hot bath, and Joseph Campbell.
...bedtime looks like heaven. You're convinced your pillows have gotten even softer than they were when you left them this morning.

Pretty damn delightful.