When you live as long as I have in only one part of a country, it's easy to assume that the way things are done in your region are the same nationwide. It took me two decades to realize that sansha mairi (visiting three shrines at New Year's) was a custom peculiar Kyūshū, and in particular to Fukuoka. 

Similarly, the shimé kazari, a New Year's decoration placed above the entrance to homes and buildings, varies from region to region. Shime-kazari is said to originate from shime-nawa (twisted hemp and rice straw rope placed at the entrance of shrines to indicated a sacred space) and meant to keep misfortune and unclean spirits away and greet Toshigami (年神), the gods and ancestors brought with the new year.