Katja of Nestled In on Flickr strikes me as such a person. Whether she's in her old house or current house, she creates spaces that are calm, comfortable and slightly quirky. I love the clean-lined furniture and abundance of white details, but even more so I admire the quality I can't quite pick out that makes both homes so neat. Here, take a look at a few photos:
From her old house:
From her current house: 
Photos from 