Bob, we are going to try your recommendation and use "invisible glass" as we undertake to clean all of the cabinets..
I am trying to figure out a new way to arrange the collection while we do it.. The are arranged by regions of the country for the most part, now. I have all of the Society pieces, Christmas pieces, variations and gold pieces grouped together.
I have been toying with the idea of displaying them by HL number, at least all of the LE's (easiest way to crosscheck inventory).