A decade later, have there been any rules of thumb worked out for mirrors vs dust? There are been some shiny metal pieces in recent years, notably from Michael Benisty, that seem to manage to stay shiny. They're too large to be regularly wiped down. And there has been a lot of dusty acrylic. (Or pol...

My solution has been to get cheap round Rx glasses online (than can be ~$10), and take out the lenses and glue them into round goggles (with some craft foam for spacing / fitting). It's not perfect - the PD is a little off (you could maybe compensate for that when ordering), but it works well enough...