When it comes to Black Friday, Amazon is taking center stage. The retail giant just announced its official Black Friday sale will begin on November 21 and run through December 2. From Dyson and Levi's to Hot Wheels and Ninja, you can expect tons of massive markdowns on your favorite name brands.

Walmart is a big name that has already launched its Black Friday campaign. Walmart's Early Black Friday Deals started on Nov. 11, and its savings-packed ad includes some really interesting offers. We've checked out everything from Walmart's Black Friday ad to find the best early deals on everything from Apple products to gaming essentials.

Before you deck the halls. Before you even carve the turkey, you can start saving on laptops, desktops, mice, and monitors and cross more than a few names off your holiday shopping list.