^Plexus spray for cleaning, which I use everytime I wash the car. I also use it for tail lights, headlights, and the wind screen.
Use Renovo clear plastic polish once a month or so and it will look brand new for years. Use and old T-shirt.
You can get the Renovo and Plexus at places like detailcity.com and autogeek.com
Get the Raggtopp kit and an OXO feathertip brush while your at it.
Autotopia has a sale 20% coupon code Summer20