"Sales" includes any sale, exchange, contract to sell, consignment for sales, shipment for sale, or other disposition. It includes the transfer of title to tangible property, and in certain cases, of tangible and valuable evidences of intangible property. Obtaining orders for "the use of facilities" includes the selling of time on radio or television, the solicitation of advertising for newspapers and other periodicals, and the solicitation of freight for railroads and other transportation agencies. The word "services" extends the exemption to employees who sell or take orders for a service, which may be performed for the customer by someone other than the person taking the order.