Ah, the wonders of Unicode. Without it, there would be no accents, we couldn’t easily share text in a variety of alphabets, and, of course, we’d have to live in a world that knows no emoji (the horror!). Alas, all this power comes with its fair share of complexity, which makes hunting for the right symbols very hard at times.
With Stephen Oliver’s $2 Codepoints (Mac App Store Link), however, you can easily make sense of the, uh, alphabet soup of characters that your Mac can produce. Simply type in the name of a glyph, and the app will find it for you, copy it into your pasteboard, and instantly make it available for use in all your apps.