As a member of Volvo Club of America, I get the IPD newsletter and Rolling magazine from VCOA. Inside is always little goodies that most people overlook.

Here's the plastic lens cleaner and polish IPD has. I've used it before on my old Plymouth Voyager before I unloaded it on an ususpecting soul:

IPD Plastic Lens Polish and Cleaner

Works well on old early 90s Eclipses too.

Made by Meguiar's.