I get condensation on the windows (single glazing). I read somewhere that if you spread a small amount of washing up liquid over mirrors and windows, it helps to prevent condensation - guess what? It appears to work! I put a pea-sized amount on one side of my windows and the side without washing up liquid has condensation. Can anyone explain the science?

http://www.thenakedscientists.com/HTML/content/kitchenscience/exp/stopping-fogging/

I'm so happy after the celebrations of the Welsh beating the English, I thought I'd help you out :)

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Regards

Ian

Thank you completefinance. And well done Wales!