@Adirondackwannabe: Practices vary from not turning on lights, stove and TV or driving from sundown on Friday night until sundown on Saturday to going to Synagogue only twice a year, at Yom Kippaur and Rosh Hashana. My family used to celebrate the secular side of Christmas and the traditional Hanukkah until our Rabbi read the riot act to my mother. Adieu, tree and decorations and all those gifts. Salut, menorah, gelt, mittens and socks, some books and one medium-sized present.
With some orthodox Jews, there is the wonderful tradition of the Shabbos goy, the guy you Hire to turn on the lights, TV, and stove during shabbos. Traditionally, he lit the fire so you wouldn’t freeze to death in N. Lithuania in your schtetl.