We’ve covered the sale since it started 10 years ago – here’s how we decide which deals make the cut in our coverage Sign up to our free weekly newsletter for insider tips and product reviews from our shopping experts Sign up for our free IndyBest email Sign up for our free IndyBest email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice I t’s been 10 years since Amazon launched its first Prime Day sale, and in that time,