I know about the obvious stuff like a bright vest, blinking rear light and wearing light colored clothes but is there anything else that I need for when nightfall hits?
Not clear, but photochromic cycling glasses have been a god send for me.
I can wear them all the time, including inside a store, at night, during bright summer days, or during those rides that start before dawn/dusk.
Before that, i had dedicated clear and dark glasses, but they were highly inconvenient.