I'm eccentric and have a few different irks. I have a bluntness which surprises people sometimes. I don't believe in "niceties".
For example, I won't shake hands with someone I don't like - if they ask why I won't shake their hands, I'll tell them: "I don't like you" - has caused a few awkward silences.
If someone asks my opinion on something, I'll give it. Girl showed me her new business website once that all her friends were praising. I told her it was crap and amateurish. I don't agree with people for the sake of agreeing or to appease them.
I'm quite financially secure, but refuse to waste money on silly things. I always have the latest phone as I like gadgets, and a car no less than two years old, live in an upmarket suburb, but I don't see the point of ornaments and decorations, paintings. My house has none of these things. I see no purpose for them ~ things put there to fill up a space? For what?
I don't like clutter either and reduced most of my book, game, video collection to digital as soon as I could.