After a customer places an order, allow them to add more products to their order with a single click.
For example, let's say that your store sells office supplies. If a customer purchases a laser printer, you could use the 1-Click Upsell system to offer them a special discounted price on toner immediately after they place their order.
If they accept the toner offer, then could continue the sales chain and offer them a discount on paper next, and so on with any number of products in the chain of offers.
But, there's more options, too. If the customer declines an upsell offer, you can even branch off into a different chain of products and offers. There's no limits to the way the list of special offers that you present to your customers can be configured.