It's just something that some people enjoy doing. We usually print up different pictures to hang in our room windows, usually with each family members favorite character. This year we're going for Christmas and we'll be decorating the window with Christmas window clings and lights. We've got a small tree to have in the room and DW is bringing each of the kids stockings from home, partially filled. She will pick up small items leading up to Christmas to finish filling them. It really just depends on the personalities of the guests whether or not they decorate their window/door.