Search is open of Photos’ apps best features, but when do you ever really use it? Never, I’d say, but that’s about to change. Search is only useful when there’s something you’re looking for. While it’s fun to see all the photos you took of cats, or guitars, or whatever, search’s real power comes when you’re looking for something specific. That is, when you’re looking for than one photo you need to show your dining companions right now. Let’s see some tricks on how to do that.