I once cleaned my car deeply, sort of like they described it here. Spend 4 whole hours on it, washing its body, the rims, the wheels, windows, seats, floormats, everything. It looked brand new and shiny.
The reason I cleaned it was because it was my sister-in-law's wedding the next day, and I was to transport her witness (AKA, my GF).
I went over to my GF's house that day, as I was going to spend the night there. I woke up the next morning, go outside to put some stuff in the car, and saw why I shouldn't have parked outside.
Entire car, filthy with dust. Bonnet wasn't blue anymore, it looked more beige. Window had to be wiped, since I couldn't see anything through the layer of dust.
4 hours of work down the drain, I wasn't exactly happy. Thank God the bride didn't mind it being a bit dusty, it appears the only one who cared was me.