Amazon announced that it plans to conduct a special one-day sale for Prime members on July 15. The “Prime Day” sale, commemorating the e-commerce giant’s 20th anniversary, promises “more deals than Black Friday.” Special deals will start to appear at midnight and new offers will be introduced as frequently as every 10 minutes. The event is designed to bring more shoppers to its subscription service. “You can simply sign up for a 30-day free trial and cancel before the end, though of course Amazon is hoping that plenty of those that do join to take advantage of its one-day sale end up staying on and paying the $99-a-year membership fee,” reports Digital Trends.