Here’s another thing I learned: Chicago women have serious winter streetstyle. The uniform seems to be a ¾-length puffer coat (which, until this weekend, I never thought appealing, as it always reminded me of one of my least fashionable, elderly relatives), paired with boots, black leggings, and a faux fur hat. It’s both chic and industrious, and seen over and over no matter where you turn. Though these puffers are available for $600 on up, I happily found my version (Anne Klein, $79) at Filene’s  (www.filenesbasement.com), the discount mecca that carries designer-wear at wonderfully slashed prices.