Christmas? Yup. You may not know, but for thousands of years, people tend to gather in family groups for the holiday, often crowding around a conifer decked in holly, tinsel, ribbons, ornaments and the like -- and most of the time, there are gifts underneath that tree!

Lots of people have families that are geographically diverse. They tend to plan ahead for gatherings, and frequently have to purchase airline tickets to get to their destination.

I'd love to hear how this arctic blast of cold air, making records as far south as Florida, "happens every year."