Black tie/formal evening wear - a couple of cocktail dresses for weddings/events is fine, but I don't need anything fancier than that.
Business wear - I own one suit for theoretical interviews, but have never actually worn it. I should just start wearing the blazer, but I've been enjoying my colorful blazers more lately.
Clubwear - hasn't been my scene in a long time. I ended up going to goth/industrial night at a club after a wedding a few months ago and realized it was (now) a major wardrobe hole!
Shorts/summer tanks - a few items for really hot days and/or outdoor activities, but otherwise I tend to stick to dresses in hot weather.