Sales Incentives # 12: Accessories
Many products require, or can benefit from, accessories. The performance of products like computer printers can benefit from extra memory, paper trays, and duplexing options.
Software can benefit from templates which provide a "paint by numbers" framework for immediately putting the programs to use. Information products like books, seminars, and teleclasses can benefit from printable worksheets, notetaking sheets, and action plans.
Rather than discounting your product or service, consider offering accessories which you normally charge extra for free during a limited time.