It's not rocket science.
Pressure wash the whole car to get rid of any 'welded on' crud. I then mix some Meguiar's car wash with water in a bucket.
Pressure wash the car again and then dry with an assortment of soft scratch free cloths.
No waxing.........no polishing.......and as for bars of clay forget it.
Done and dusted in less time than it takes STMO to walk the whippet and then watch fascinated while it takes a 'runny dump'
Not a bucket to be seen with my method.
Gentle rinse with the pressure washer, no blasting the dirt into the paint.
Use the snow foam with the lance attachment and leave for 15 minutes.
Gentle rinse again.
Use Meguiars NXT generation car wash with lance attachment and wash with lambs wool mit.
Gentle rinse again and dry with drying towel
I use Bilt Hamber finis wax every other wash