I only do this once a year.
Until there's a Lotus sitting in my garage, it's the only way I get a "new" car.
I already see I missed a big spot on the inside of the door including the lower door hinge. Grrrrr.
Everything black gets treated so it's black again. The grille gets qtip cleaning. I need to go over the dash again with armor all bc it's streaky. And I did take a steam cleaner to the entire interior roof liner. Plus it has these integrated booster seats and spawn shoves Legos, lollipop sticks, candy wrappers...you name it in there. It was washed, waxed, vacuumed, steam cleaned (I did carpets too), I throw the floor mats in the washer, leather was treated, Windows cleaned, seals were treated, everything black got treated, all beige plastic got natural finish protectant. I even pop off the vents under the front seats and clean/treat those. The only thing I didn't get to was taking the wheels off to clean the insides.
My car is a PITA to clean. But today, she looks and smells better.