My plan is quarterly claying, washing, polishing and wax. I've learned today to clay & wash. No more spritzing for me, it's a waste of time. Using the Megs shampoo is just as slick and the contaminants come right off. The clay bar lasts longer too!
My fall plan for both vehicles, which are black and dark gray:
Wash & Clay as the same time, rinse away contamination.

Wolfgang Polish Enhancer
Wolfgang Sealant 3.0
Two to Three layers of Max Wax right up to Thanksgiving.
Wheel Glaze Monthly up to Thanksgiving.
DP Gel Gloss tire treatment as needed.
Combined with washing as needed, (I wash when dirty), this should get my cars through the winter.