If you like to watch butterflies and other creatures from inside your house, you know the importance of clean, clear windows. And you have probably noticed how sunlight heats up not only windows, but the air and furniture inside your house.
In spring and autumn (prime butterfly season in many areas), windows often fog up because of steam heat or simply because of the temperature difference between indoors and outdoors.
And sitting near a window can be a drafty experience on cool, damp
