my mother really liked "double shopping point day" at supermarkets. she seemed like if she hadn't have bought as many as she could on that day, she would have lost something. she was also obsessed with "buy 1, you get 2 free" or "3 for 1000 yen," and so on. although i haven't thrown off all of those bad habits i inherited, at least i cut ties with her to realize her thoughts were the worst in the world.