For union dues, I’ll sometimes bring up strikes. People know that when unions strike, they aren’t working, and when they aren’t working, they aren’t getting paid. What they don’t realize is that most unions pay the employees during strikes, and that money has to come from somewhere.

“Sunwise”, and for the exact same reason.

Clocks go clockwise because their predecessors did. What were their predecessors?

Sundials.

How does the shadow go around a sundial? Well, sunwise, of course.

Counterclockwise, as said in another comment, was “widdershins”, from a Middle Low German phrase meaning “against the way”.