I am no longer a purist...

Temp this morning was -3F, windchill -20 to -30, northwest wind (That's a headwind for me all the way to work). I used chemical toe warmers this morning for the first time this winter, and boy was it nice to not have icy toes when I got to work. 10 miles of beautifully plowed MUP, and then the last 2 miles of unplowed MUP with drifts, just to make it a better workout. Toe warmers are awesome!!!