Dress in layers
This might be “duh” advice, but it’s worth a mention because it’s probably the most important rule for working in the cold. Weather conditions change constantly during a workday. It might feel 20 degrees warmer on the sunny side of the house or 20 degrees colder when you’re exposed to a brisk wind. In order to remain comfortable, you need to be able to make wardrobe adjustments. Wearing just one super-insulated layer will inevitably cause you to sweat when things heat up. And when things cool back down, you’ll be wet and shivering like a chilly Chihuahua.