Amazon's Black Friday and Cyber Monday events give customers 12 days of big savings. Here are seven deals that are already live.

Walmart revealed more details about its second "Black Friday Deals" sale Monday that starts online on Nov. 25. Why it matters: The world's largest retailer's sale is starting four days after Amazon launches its Black Friday sale Thursday,

Walmart is celebrating Black Friday and Cyber Monday this year with three separate sales events. While the first event has already begun, the company announced plans for the second Black Friday event and Cyber Monday on Monday.