I just got my manuscript from my editor, who is awesome, but is also Irish. So I'm keeping an eye on UK English / US English differences and one thing that leaped out at me was... ellipses!!
I notice that she's changed my ellipses from this... to this ... like, with a space between the preceding word and the ellipses. I did not know that! Funny enough, Wikipedia says that I'm also supposed to be using spaces between the dots. Like . . . this.
What are you used to? I'm genuinely curious now.