Both retailers are offering price protection through most of the holiday shopping season as well, so if you buy early and the same item drops to a lower price, you can retroactively get that better deal.

Early Black Friday deals have landed at Best Buy, so I've been scrolling the full sale all morning. While gathering all the biggest discounts, though, I noticed a problem. I price check every deal I find, to make sure it's the lowest on the web, and have found that Amazon has snuck into Best Buy's party this week.