Rode in Monday, found the tire flat when it was time to go home at 5:00. Wouldn't hold air at all. Got a ride home and returned with the car to pick up the bike. Went to Sports Authority to get a patch kit (I know, I should already have had one). Took everything home, removed the *()&@#()*HF Vittoria Ranonneur tire (OMG, what a pain!), and applied the patch. Not sure what caused the puncture. Put it all back together and pumped it up to 85 psi.
Tuesday morning, tire has air! It's my day to drive though, so the bike stays in the garage, but I can't wait for Wednesday.
Wednesday morning, guess what? Tire's flat. So, I drove in today too, and plan to visit my friendly neighborhood LBS and get a new tube and perhaps a proper patch kit.
RANT off.