I live in an older house, built probably early 1920's in Illinois. The built on back porch has 4 sliding windows (drafty), a bare cement floor (painted green by the landlords), and the back door that leads to the back yard. This summer I moved all my work out equipment to the porch because the basement was way too dusty and gross to work out in lol. Any tips on how I can seal up these windows for just the winter and cut down the temp in the room? I tried those plastic sheets with the hair dryer last winter and honestly did not do much. Any input would be great thank you!