A yard sale is where people sell things they no longer want from a table outside their house. Some will sell from boxes or atop blankets on their lawn. A garage sale is essentially in the same category as yard sale but originally was limited to items in the garage.
An Estate Sale is an auction and sale of substantial materials owned by someone wishing to downsize or facilitate a move. Estate Sales are held in the home, with all of the items still in place typically. While some people will hire professionals to come in and advise on current values to assist the family in collecting the highest prices, others prefer to have the entire sale outsourced.
Consignment shops provide an outlet for people that have only a few pieces to sell after converting rooms to other purposes. Utilizing consignment shops helps in maintaining the value of the piece and provides access to more viewers and purchasers.