Quote: "...Red light etiquette is an unknown to me, I always observe at home amongst the fairy lights strewn around the garden. As a smoker I worry about lighters, do they affect dark adapted vision? Can I open my car door or do I need to shield the interior lights if I do? So much to learn regarding Star Party etiquette." I removed my interior/courtesy light diffuser, (if that is the right part), and cut a piece of red rubylith to fit and refitted. Job done! - also when entering a site I use my sidelights. I smoke myself and no one has yet said anything to me about lighting up a cigarette (roll-up or ready made), cigar, pipe; (though I don't advise it just in case the loose ash accidently drops or gets blown into my optical hardware). Just don't forget the Jaffa Cakes!