I've pulled out my Smartwool socks, and my winter hat. I haven't worn my gloves yet, or my long underwear, but that day is coming, soon. Even in the bright sunshine it is crisp, and there's a chilly undercurrent. When the sun sinks below the treeline, or even disappears behind a cloud, you can feel the frosty edge. The fleece pants are in service. The silk thermal undershirt is on duty. The fleece vest has been doing good work but it's almost time for the down jacket. It's almost time for the flannel sheets.