You have obviously put a lot of effort into the valet, but I would have done the outside first. When we valet cars, we do it in this order.
1.
Wash the outside (paintwork, wheels, doorchecks, arches, glass. Use your tar remover here)
2.
Chamois the car (this will ensure that the car is completely dry when
you wax it at the end)
3.
Vacuum the inside (take a bottle of mild detergent and a cloth to use on the plastics. Start from the highest point, ie dashboard and work your way down. No point vacuuming only to brush all the dust etc onto the floor. Use a nailbrush for the stubborn bits. Use a disposable rubber glove to brush up doghair.
4.
Wax the car (as you will have opened and closed the doors, any hidden water will have dribbled out....hopefully. A microfibre cloth and a spray bottle of water will remove any wax/polish left on after waxing and will complete the process. MF cloth and water will remove any residue from plastics too)
5.
Interior dressing (use your products on the plastics now)
6.
Glass (any detergent, interior products that have made it onto the glass, can now be removed along with the smears etc)
7.
Exterior dressing (use your bumper gel, tyre dressing now, giving extra care not to get any on the paintwork)
8
. Step back and admire (enjoy your handywork and drag people from the other side of the road to share your joy. Take pictures and put them on here. Ensure all children/partners wipe their feet and wear white cotton gloves before entering)
Might not be of use to everyone, as we all do things our own ways. I have watched people valet their cars, only to clean something again due to carelssness with other poducts. GTG season is up and running, so no excuses
Have fun!