Trawling Zillow for price cuts is practically a national pastime; tracking mortgage rates can turn into an equally engrossing, if slightly nerdier, obsession. While those headline figures suck up most of the oxygen, the other, often-overlooked ownership expenses — taxes, insurance, pesky homeowners' association fees , and incidentals like a leaky roof or kitchen renovation — have gotten pricier than ever. Homeowners of all kinds, even those who managed to snag historically cheap mortgages a few