What about these dingbats who carry the Orange Whip in their bag? Fortunately I have never had to play with one of these guys, but I occasionally see them on the first tee swinging away. Not sure if they are swinging it throughout their round or not. Seems like an adult security blanket or pacifier.
My routine does not differ based on the round being a tournament or a casual round. My routine differs if I'm playing a course for the first time, in which case I'll allocate more time to chipping/putting to feel confident on the unfamiliar greens.