Rituals. Routines. Repetitions.

ritual: a prescribed or established rite, ceremony, proceeding, or service: the ritual of the dead; prescribed, established, or ceremonial acts or features collectively, as in religious services; any practice or pattern of behavior regularly performed in a set manner; a prescribed code of behavior regulating social conduct, as that exemplified by the raising of one's hat or the shaking of hands in greeting. 

routine: a customary or regular course of procedure; commonplace tasks, chores, or duties as must be done regularly or at specified intervals; typical or everyday activity: the routine of an office; regular, unvarying, habitual, unimaginative, or rote procedure; an unvarying and constantly repeated formula, as of speech or action; convenient or predictable response:

repetition: the act of repeating, or doing, saying, or writing something again; repeated action, performance, production, or presentation.