Door-to-door
From Wikipedia, the free encyclopedia
Door-to-door is a sales technique in which a salesman walks from one door to another trying to sell a product or service to the general public. A variant of this involves cold calling first, when another sales representative attempts to gain agreement that a salesperson should visit. Door-to-door selling is usually conducted in the afternoon hours, when the majority of people are at home.
In the United States, door-to-door sales are illegal in communities that have passed a Green River Ordinance.
Typically, products sold door to door will be of the same variety that can be purchased at large discount stores. The products accounting for the largest share of direct-sales revenue includes cleaning supplies, cleaning equipment, magazines, and home improvement products. The largest of these would be the home improvement products where item could be new or repaired roofs, siding, new replacement windows, and decorative stone.
In many countries, encyclopedias, including the Encyclopædia Britannica, were frequently sold by door-to-door salesmen, although the practice is now less common.

