Black on black on black
I'm such a fan of the black everything look. It can look a tad emo in come cases but I don't think it's actually difficult to get right. Maybe there's more to it than piling everything black that you own but let's face it - black matches black so it's easier putting together an outfit like this than most other days.
Here's my interpretation for an all black outfit - down to the lingerie. But that's purely optional.