In response to your article about keeping warm in winter I would like to share my enthusiasm for bubble wrap. It simply sticks on a window with a little water. It is amazing what a big difference it makes to the temperature in the house. If your lucky you can find free bubble wrap (some businesses receive their goods in it and throw it away), but it is not too expensive at stationary retailers. On frosted windows it is hardly visible. On windows with a view (such as the living room) I put it up when I draw the curtains and take it down again in the morning. I am very very happy with it.
Anonymous comments: Lisa from Whakatane sticks bubble wrap on the window glass. Bubble wrap is the product of choice for any window you don’t often look through. Holding it onto glass with water is quick and will come away cleanly. A more effective method, if you don’t mind a bit of a clean-up job afterwards, is to use sellotape (or even masking tape if you’re worried about the surface but don’t mind the look) to attach the bubble wrap to the frame. The aim is to create an air gap between the bubble wrap and the glass of 1–2 cm. More is OK, but a greater distance doesn’t improve matters any. The air gap works exactly the same as it does in thousand-dollar double glazing. Yes, that’s what the bubbles are for in bubble wrap, but this way you get double the insulation. Make sure you completely seal the wrap to the window though, otherwise it doesn’t work. Another advantage to sealing the window with bubble wrap is that you seal off any leaks around the window frame.