For this discussion we will look at the costs of increasing the number (and quality) of outlets in the average home, including both 120 volt and 220 volt equipment. The average number of outlets per room in a 2500 square foot home tends to be two or three in each space.
A tire (American English) or tyre (British English) is a ring-shaped vehicle component that covers the wheel's rim to protect it and enable better vehicle performance.
Tire bead is the term for the edge of a tire that sits on the wheel. Wheels for automobiles, bicycles, etc. are made with a small slot or groove into which the tire bead sits. When the tire is properly inflated the air pressure within the tire keeps the bead in this groove. It is common amongst drivers of off-road vehicles to decrease the air pressure in their tires.