Adding Products and Services can vastly decrease the time it takes to create and send your quotes and invoices out to your customers. You can do this by quickly selecting a product from the drop down box in the quote creating page which will then fill the description and pricing field with your predefined options.
Enter the settings page, then click the Products button. This will take you to the products page, click the add product/service button and fill in all relevant details and save.
This Product and/or Service will now appear when you are creating your quotes and invoices.