polish and wax your car

Not a new article but as this is quite popular and interesting it's worth mentioning the existance of it.
Here you can read about car waxes and polishes, and which ones you can use on your playfields.

There are a lot of different opinions, most people swear by Carnauba wax, others use plain Turtle wax, but synthetic waxes also have their use.
There's no scientific research done (as far as I know) to waxing playfields, but there is a lot of research done to waxing cars, and how to polish them, remove small scratches and haze, ..