Right now, chill/ambient music is what I listen to the most, especially anything from Tycho or Bonobo.
home improvement project
I'm not sure this is exactly "private" but I do love horse racing. I know this puts me at odds with most of my age demographic (and usually conjures up an image of a degenerate gambler) but it will always be a sentimental favorite of mine regardless of what others may think. There's no trip I'd like to make more at this point than to the Kentucky Derby (I went for the first time in 2010). Regardless of interest in the sport itself, I think the Derby is one experience everyone should have at least once in their lives.