When sawing wood, take time to consider which side of the material to having facing up. Keep the good side up when you are using hand saws, scroll saws, bandsaws, tablesaws and radial-arm saws. Keep the good side down when using a portable circular saws or sabersaws. The principle is to have the tooth of the blade first break through the rough side of the board or panel.
When working near a sink or bathtub always put the plug in. This will prevent any dropped screws from entering the hole.
There isn't a definitive answer to this question. You should look at each home for its individual characteristics. Generally, older homes may be in more established neighborhoods, offer more ambiance, and have lower property tax rates. People who buy older homes, however, shouldn't mind maintaining their home and making some repairs. Newer homes tend to use more modern architecture and systems, are usually easier to maintain, and may be more energy-efficient. People who buy new homes often don't want to worry initially about upkeep and repairs.
Keep waterbeds covered with quilts or blankets to help retain their heat. You might also want to insulate the bottom with a sheet of rigid foam insulation.