I currently live in a rented apartment and the windows in my living room are not sealed, so during the cold weather months they became a prime spot for energy loss. Leaking problem is from loose fitting window sashes. I think duct tape can be easily installed around the edge and frame of the window. So let`s create this barrier between the outdoor air and the inside of my home, helping block air leaks that lead to high heating costs.
Open the window. Wash surface of sashes and frame of the window and give them enough time to dry completely.
Install duct tape on the frame of the window.
Close the window. Install duct tape on the edge and frame of the window.
Finally put some decoration with little plants.