Or, if your parents or grandparents are Irish diaspora, like mine, you can claim Irish citizenship fairly easily. They already consider you a citizen, technically, so there's no immigration proceedings; you just need to "register a foreign birth" and provide documentation.

Actually, if that's true of any EU country with similar rules you could claim citizenship in that country and be allowed to live and work in Ireland. We're talking about a lot of people here.

Of course, becoming a citizen of another country shouldn't be taken lightly, and it does take time.