We’re renting and the landlord isn’t in a hurry to fix anything. We’re putting plastic on the windows for winter and doors back in where the last tenants broke them. They were a little dysfunctional. The house is a 1930’s colonial built on the original farmhouse foundation. It’s big and drafty but every room had doors in order to keep the heat in the rooms. There’s a lovely set of french doors still in the dining room. The doors for the living room were broken. They just need new glass, The french door to the garden/florida room has broken wood. We’re hoping to find someone, a carpenter, to fix it. Not much that one can do with the nearly 80 yr old windows.
Plastic on the windows is always my first line of defense against the cold. Then I use “draft dodgers” in front of every door for every room. They help immensely.
Then I wrap the water pipes closest to the outside, as well as under the sink, and also use a “blanket” for the water heater.
Just those few things can make all the difference in the world in how much heat escapes. Good luck with it. And you might want to check with the power company about the rebates, then tell your landlord of the incentives. He might be interested.
Plastic is good but if you hang heavy curtains over the windows as well it will be far warmer.
I know curtains are not considered fashionable any more but those itty-bitty valances don't stop drafts!