Overview: The final two days in Billerica find Dick returning his beloved Model A truck to the new garage, which is nice and warm thanks to a natural-gas heater. Roger Cook and his crew are rolling out a bit of sod in the back yard, and Roger gives us a look at how he covered up the septic tank, moved the frog and replaced the old pavers around the pool with some beautiful granite coping by Roger Hopkins. Inside, oriental carpet expert Steve Boodakian extolls the virtues of a central vacuuing system - it makes vacuuming so easy that people tend to do it more often, which greatly extends a carpet's life. The front stairs runner receives its decorative brass hold-down rods. PC Computing magazine editor Paul Somerson reviews the house's computer set-up, which starts with a high-speed cable connection to the internet. A ""hub"" allows multiple Internet connections throughout the house, so all computers in the house to share any peripherals, like a printer or fax. The final pieces of linoleum go down i