I had a 1930 Sears Roebuck kit house, a Craftsman style Bungalow. It had plaster walls and stucco siding and no insulation.Being a Carpentry contractor and having just done a job making storm windows for an old Victorian house , I decided to build storms for my house. I had only 13 windows and most had screens that needed rescreening so I spent the better part of the first year making storm windows with all the correct hardware and weatherstripping . I was able to salvage lots of glass from a window replacement job previously from all the triple track storm windows I removed and sized the muntons in the windows architecturally correct with the glass I had. Needless to say it made a huge difference. On days it was a bit warmer I was able to tilt out the storm to let in fresh air .l along with adding storms which are pretty simple to make I had cellulose blown in the ballon framed walls and installed a nice little Vermont Castings Intrpeid woodstove…problem solved.
The farm I grew up on had a drafty cold house that every winter we would put the plastic on the windows . Without doing any job right it’s like putting a band aid on a severed limb. Do the hard work now and enjoy your hard work for years .