I expected to be 5 for 5 bike commuting this week, but heavy fog convinced me to drive this morning. The fog was about the heaviest I have ever seen around here, and I'm not comfortable riding 15 miles in rush traffic with visibility that poor. There is no way I could have kept my glasses clear enough to see and I need them for riding. Oh well, the weather is looking prime for the remainder of the week, and hopefully the fog will be a one-day event.