Getting customers to spend more money is the name of the game, and upselling is one of the best ways to do that. It's a technique that convinces a customer to buy a higher-priced, higher-margin product or add-on by demonstrating how much better it will make their day-to-day life. Upselling is an effective way to increase the value of your sale and boost revenue by providing customers with an additional product they can benefit from. Plus, it creates opportunities for the customer to get more value from the product they purchased.