When I hit the trail for my commute on Friday, it was 60 degrees. This morning it was 23. With the wind chill, 10 degrees. In some ways' I've actually been looking forward to this weather. There is in spring and fall that time between when it's cool in the morning and warm for the ride home. What was worn in the morning must be somehow carried at the end of the day. And the trunk bag simply doesn't have the space. But now that winter is here, the slight difference in temperature means that I don't have to play that packing game.