I know Christmas is over but there were two articles I saw today that I thought might be worth passing along.
Family Tree Magazine's Newsletter had a small article on taking care of old Christmas decorations. You can find the article at http://www.familytreemagazine.com/article/How-to-Care-for-Christmas-Ornaments. If you go to their website, you can sign up for their newsletter.
Dick Eastman wrote about an article that discusses the genealogical value of Christmas cards. You can read that posting at http://blog.eogn.com/eastmans_online_genealogy/2008/12/what-to-do-with.html.