Box of Tide is pretty much Navy specific from people I've talked to.
I was exposed to the mop in the window (or a red porch light) when I was stationed in Germany during Dessert Storm. I've also seen it a few times since then on stateside posts. Some wives don't know what it means and do it by accident but there are a few who do know and still do it.
Most people don't seem to have heard of it so I'm gonna have to change my deputation video a bit but I've talked to enough people who do know about it to know it's real.
Thanks.