A2: Windows
Writing in the Washington Post, columnist Katherine Salant discusses the issue of whether to replace the windows in your home: “The first winter we spent in our house in Ann Arbor, Mich., we learned that the marble windowsills were not an upscale detail. They were a necessity. So much condensation was continuously dribbling down the aluminum window frames, a waterproof sill material was required. Even worse, the seals between the two panes of glass in most of our 30-year-old windows were broken, resulting in the windows getting so fogged up we couldn’t see out easily.” [Source]