Friends often tell me they want to make their homes greener but don't know where to start.  Everyone also want to know what are the "easy" things they could quickly do.  So in I invented the 5-10-50 list... what 5 things can any homeowner do themselves, in 10 minutes or less, and save at least 50%.  Here's my list.... I'd be curious to hear what others would put on theirs:

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