This is the end of the year, and you see many of these traditional Japanese new year decorations around Japan.
These are called Shimenawa/Shimekazari しめなわ／しめかざり
Japanese people decorate these on the entrance door and use them for ritual purification. In the world of Shinto they believe Shimenawa act as a ward against evil spirits.
I thought this PIKACHU poster was so cute♡. Attached on the door of pharmacy informing the business starting date of 2018 and greeting new year at the same time♡.