symphony smoke layered material with dark background

>For other uses, see Smoke (disambiguation). Smoke is a suspension in air (aerosol) of small particles resulting from incomplete combustion of a fuel. It is commonly an unwanted by-product of fires (including stoves and lamps) and fireplaces, but may also be used for pest control (cf. fumigation), communication (smoke signals), defence (smoke-screen) or inhalation of tobacco or other drugs. Smoke is also sometimes a component of internal combustion engine exhaust gas, particularly diesel exhaust. See more at Wikipedia.org...

is the examination of goods and services with the intent to buy. Another version of shopping is called window shopping, which is simply examining the goods without buying. Shopping is considered a recreational activity of psychological interest. Shopping involves selection, purchase, and display behavior. See more at Wikipedia.org...