Philips screws and daylight savings!
Also, the use of the word "optics" as a metaphor to describe how the public perceives something, usually in political conversations. For example, "holding the board of directors meeting at a beach-front resort was bad optics". To me, optics are things like binoculars or camera lenses, and they affect how I personally see something, not how the majority of people see something. And nobody else has any control over what optics I use to view something. If a tree is green, most people will see it that way. If I view the tree with a filtering lense that makes it appear purple. It just looks purple to me. It doesn't change the tree's color and it doesn't change how millions of other people see the tree. That's optics. But that's not how people use the term. A column written by a biased auther about some event might be a better example of optics, but the event itself is not IMO. The metaphor doesn't work for me, and I think it sounds pretentious.