Given the arrival of winter solstice, you might be interested in this. It graphs sunrise, sunset, length of day, angle of sun, and other items given your location. And although most people may be aware that winter solstice is the day with the shortest daylight of the year, I'd guess that not many are also aware that it is not the day with either the latest sunrise nor earliest sunset.
And finally, to help celebrate the holiday, I am reminded of an old school-yard Christmas tune (feel free to finish the verse your own merry way):
Chester's nuts roasting on an open fire,
Jackie's nipple on your nose...