Here's a simple and effective idea, courtesy of TreeHugger. Toronto based green retrofit specialists Greening Homes put signs like this in the front garden of houses the company is renovating. As well as providing free advertising for the firm, the sign lets everyone passing by know what kind of work is being done, and encourages neighbours to consider green refurb too.

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Lenny Antonelli
Lenny Antonelli is deputy editor of Passive House Plus. He also writes regularly for the Irish Times, and has contributed to a variety of other publications including the Sunday Times, the CS Monitor, Village, the Sunday Tribune amd the Dubliner. He is currently working on a radio documentary on Ireland's oceans.
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