Another beautiful morning in Nashville, 57 and clear when I left the house (just before sun-up).
The ride into work was uneventful.

HOWEVER: The manager of the parking garage called at 1:30 and asked, "Did you know your bike has a flat tire?"
uh.. no I didn't. So after my 2PM meeting I rolled it up into my office and changed the tire. The tube has a split along a seam about 6" long. Nothing penetrating the tire and no puncture in the tube that I can see, just that split.

It just so happened that today, I forgot my cell phone on the charger at the house. I really hope the ride home is uneventful.
I'm still new enough at this to get spooked at flats (been commuting since May).