When I had outside lighted decorations, I put them up on St. Nicholas Day -- December 6th and took them down on Epiphany -- January 6th. I celebrate Advent beginning the first of December (sometimes the last Sunday in Nov), so inside the house is an Advent wreath and a creche to which I add figures to each Sunday. I start with the animals and gradually fill in the people up to Christmas Eve when I add the Christ Child and Magi. The Sunday before Christmas I put up the rest of the inside decorations and leave them up until Candlemas - Feb. 2nd.