I am new to the world of colognes . Reading several posts on this forum , I notice many posters refer to having a rotation of colognes rather than wearing just one scent. (1) How long do most users wear one cologne before continuing to the next one in their series ? A day , week , month ? (2) If already in a committed relationship with a significant other , wouldn't wearing a single personal signature scent make more sense than wearing different scents on different days . weeks / months ? (3) If not in a committed relationship with a significant other, does wearing a series make sense because different women react differently to different scents ? If using a rotation which includes a cologne which a newly met female does not like , at least the guy will not smell bad to her ALL the time if using others in a rotation on other days when seeing her.