It has been like Antarctica here for a few weeks now. Actually, as of today we are starting to see the more positive side of the thermometer. Either way, anytime is a good time to $ave on the energy bill as well as conserve.
What we do:
--close extra doors to un-used/rarely used rooms and close the vents to those rooms--this forces extra heat in the rooms where you really want it.
--use lined roman shades (we just got them for the last remaining room today)
--(it is working wonderfully) and we found these at Lowe's
--after cooking dinner and turning the oven off, open the oven door a bit to let some nice warm heat into the kitchen (make sure pets/children stay clear)
--make sure outside doors are tightly closed
--if it isn't necessary, don't open the curtain or blind for the day (i.e.--I don't see a need to open the roman shade in the girl's closet esp when it's cold)
--turn the thermostat down when going to bed and use a nice blanket instead (personally, I hate it being too warm when I sleep)
--light candles for nice ambiance, warmth, and turn off some of your other lights
Waiting for spring!