once in a blue moon

Oh how I love the color blue. I love every shade of it.

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Speaking of blue, we are going to have a blue moon for New Year's Eve. A blue moon is the second full moon in a month and this won't happen again on New Year's Eve for another 20 years. That's where we get the phrase 'once in a blue moon'. I hope 2010 is a year full of health and happiness for you. Happy New Year!