As a form of entertainment, the car wash has a lot going for it.
Conveyance through a tunnel of mesmerizing apparatus, frothy spray, whirling manikins of cloth affectionately referred to in our household as dancing Wuli masters, application of colourful gels and unguents, even a mirrored wind tunnel. Fun for the whole family for just $10 a carload.
Delivered at the exit, I put the car in gear. Glancing back at the mirrored wall I noticed, for the first time, the extensive machinery residing at ceiling level. Enormous fans, piping, motor housings and the like. The overhead that makes a clean car possible.
With eyes focused on experience, I rarely see what pulls the strings, delivers the water and blows it away.
Only in hindsight can you see where you came from, and how much it takes behind the scenes to wash away the accumulated debris that dims headlights and dulls paint.
All for a slim $10.
Shouldn't...but Do 
Funny about this post. I had *just* come home from the car wash when I saw this one.
Not only was it entertaining, but I now have a clean car!