and the lesson is.......protect the headlamp lenses on your new cars (or
after you guys use Brasso & rubbing compound on the old ones).
accessory houses, eBay etc. have a variety of headlamp protectors:
expensive, molded ones........to self-adhesive sheets.
I found self-adhesive mylar sheets at a local office supply store.....so
just cut sheets to cover front lamps,,,,,,,,easily peeled-out and
replaced if they get nasty.