Chicagoans love to commiserate about the character-building extremes of our weather, and chances are most of your conversations in the last week have involved some combination of the words “record-breaking cold,” “instant frostbite,” and “tissue-killing temperatures.”

If you suspect your landlord isn’t complying with the ordinance but you don’t have a thermostat inside your place, several free smartphone apps measure indoor air temps. Landlords can be fined up to $500 every day per violation, so don’t be shy about reporting them to 311.

This is no time to be fashionable (looking at you, person wearing sneakers and no socks on the el), and the best strategy may just be to pile on every ugly article of winter clothing anyone has ever given you.