Cold weather uniform

In theory I love the idea of a daily self-imposed uniform--no thinking! But in reality I get bored quickly and one day's perfect outfit is tomorrow's monstrosity. The exception is winter. All I want to wear in the winter is this basic outfit:

Knit shift dress, cashmere sweater, cashmere scarf, warm leggings, warm socks. Throw a coat, hat, and waterproof boots over that and you're golden. Warm enough for the outdoors, and you can quickly strip off the outer layers for crowded subways and overheated offices.

This outfit was chosen primarily for practical reasons:

• The shift dress is tight enough that you don't have to wear a slip to stop it from riding up against tights/leggings. 
• Footless leggings are way more comfortable under socks than tights. 
• Cashmere is just yummy. 

Note: Once it gets really cold I swap the dress for a plaid button up shirt and replace the leggings with jeans, or wear them under the jeans for the most bone-biting New York February days. (I've also heard about fleece-lined jeans, which sound amazing, but haven't experimented with those yet.)

So, this year's question is: How to do this Responsibly? Stay tuned!