That is interesting. I've always felt that clothes, glasses, homes, dogs, and cars are just an extension of our self-perceptions, or our personalities.
It is a little unexpected, however, that people who don't even know you could make that connection so reliably.
I've always said you could do the same thing with shoes. Give a person two pairs of shoes to pick from (not distinguishable in size, etc.) and I'd bet they could be reliably matched to a photo of a person.