Once in a blue moon...

You got it! Tonight is a blue moon for the United States (parts of the country will celebrate it later in June due to time zone differences). A blue moon is when you have two full moons in the same month. How often does it happen, you ask? Every 2.5 years! The last time was in 2004. So, if you found yourself acting strangely or needing extra assistance today, give yourself a break; it only happens once in a blue moon.