When "Jerry and Charlotte" went house hunting almost a decade
ago, they initially envisioned a classic place filled with Old
World charm. Instead, they chose a modest ranch-style home in
Sunnyvale, built in 1957.  "It wasn't the look we were initially
hoping for," says Jerry (the couple requested that their real
names not be published), "but tastes change, and the clean lines
definitely grew on us."  Eventually, though, the pair wearied of
"quirks" such as condensation on the single-pane windows
whenever the weather turned cold or rainy, and a perpetually
chilly corner in the three-bedroom, two-bath house where mold
was discovered. Moreover, the noninsulated walls and a poorly
designed fireplace leaked warmth. The heating system was in
constant use, drying the air and stirring up dust.  The large
triple-pane windows in the living/dining area (which cost
roughly 20 percent more than double-pane glazing) have
dramatically reduced noise from The large triple-pane windows in
the living/dining area (which cost rou