Yup.... been doing this process for many years now. :thumbs_up:
It is always important to start from the top and work your way down. I also use a different bucket of car wash solution and brush/chamois for the wheels/tires, that way none of the contaminants gets onto the finish of the car.
The only thing that I do differently from that article is that I use a long handled soft-scrub brush instead of a chamois to clean the car. As I get older, washing the entire car with a chamois/sponge can getting tiring. So I opt for the lazy route and use a long handled brush to reach hard to get to areas. It probably is scratching the paint surface a bit more than if I used a chamois, but then again; my RAV is not entering any car shows. :lol: