Digressing here but this is why the Compose key is essential. I'm kind of bitter that it never took off. Even if you'd never typed that character before, your

Digressing here but this is why the Compose key is essential. I'm kind of bitter that it never took off. Even if you'd never typed that character before, your first guess would be Compose-Tilde-N and you'd be right. How we got stuck with "just remember the ASCII or Unicode codepoint for every character your keyboard doesn't have" is beyond me.