Operating in repeat mode

Something Case wrote got me thinking about all the things I do compulsively.
1)Go to lunch at the same place everyday for weeks on end.
2)Listen to the same song all day long.
3)Latch on to an author and read thru all his\her books.
4)Buy the same clothes in multiple colors. This extends to shoes and accessories.
5)Park at the same place .
Ummmmm...