I'm sure this will post will creat a thread of: "Get double glazed windows" or "Why don't you just open a window"? responses...
But: portable dehumidifiers might perhaps be the greatest invention of all time. My toothbrush was dry this morning for the first time since we moved here!
This fine dehumidifier/heater combination is half price until the end of today at Farmers. http://salefinder.co.nz/Home_and_Fas..._Heater/195711
PS: We're renting a place at the moment, and I do not have much desire to improve the property for the landlord...
PPS: I would open a window, except it's fricken cold outside...