Shamrock Shakes are back, but only through St. Patrick's Day. Shamrock Shake sales helped to fund the first Ronald McDonald House back in 1974. #McDonalds continues to donate 25 cents from each shake sold to Ronald McDonald houses all over the country. Fun fact: Back in the day, the shakes were lemon-lime flavored. They are now mint-flavored. There's even an Oreo Shamrock version. That benefits Ronald McDonald Houses too.

There's more than one reason to enjoy a Shamrock Shake at #McDonalds in celebration of St. Patrick's Day. Not only are they delicious,...