Wet wheels, then wash.
Wash car, rinse.
Clay with a lube while still wet. Dry.
Use compressed air while drying, i.e. door handles, emblems, molding, weatherstripping, wheels, tires, grills, lights etc, you get the picture. All those areas that drip when a PC goes by it.
Dress wheels
Dress trim if needed.
Polish (may be a couple-few steps here) with PC and appropriate pad and product, remove.
Seal with PC and product of choice, finishing pad, remove.
Remove matts, vacuum and shampoo.
Blow out/clean interior nooks and crannies, cup holders, brush vents etc.
Wipe down plastic/vinyl with diluted APC.
Vacuum, clean vinyl/leather/cloth seating with water and cleaner of choice, then treat.
Apply 303 or other protectant to necessary areas.
Vacuum/clean carpeting, door panels.
Door jambs.
Theres probably over 100 items attended, and I have obviously selected to not mention everything.
Now, just a few items off the top of my head are cleaned in no particular order:
Headliner, instrument panel, turn indicators, shifter, e-brake, steering column, interior lighting and mirrors, ashtrays, seatbelt clips, doorhandles, locks, rear view mirror, seat adjustment handles/knobs, sheeeeeeeesh, it goes on.......
Im sure theres a lot more.
I pretty much am an outside first, then inside. This may go against all rules or "proper procedures" but I like to see the outside clean while im working. If i have to keep getting in and out of the car, looking at a dirty surface, I get discouraged. One doesnt really pay a whole lot of attention to the interior when detailing the exterior. Just my method of madness...............
Oh, and glass is last.........