Do you think wooden windows are environmentally friendly?

I have a house built in the 70's and the previous owners built in cabinets along an entire wall with sliding wooden doors. I would have to pull and tug and tug to get them to open, and then they would often pull the other door open with them!<br /> <br /> This would have been a situation where, with a different material other than wood, WD-40 would have been perfect! Of course I was working with wood, so that wasn't an option.<br /> <br /> <br /> I finally took an ordinary bar of soap (nothing fancy with moisturizers or extra ingredients) and ran it along the wood where the cabinets slide. Bingo! <br /> <br /> <img src="mkd123.jpg" /> <br /> I have since used this method to make wooden drawers open and close smoother and I do touch everything up every couple of months with a little run across of bar soap!