Amazon has started the countdown to Black Friday with the launch of a special section on its Web site.

In case you’re wondering, you have 19 days to the biggest shopping day of the year, and the online retail giant isn’t wasting time jumping into the holiday fray. The site is already offering early deals on electronics, movies and other items, as well as teasing mystery deals that will go live over the next few days.

Amazon isn’t the only retailer that’s getting into the holiday spirit early: Best Buy announced last week that it is offering free shipping on everything from its Web site, with no minimum. The company is also reworking its return policy for this holiday season, saying that any gift bought from Best Buy can be returned or exchanged from Nov. 13, 2011 to Jan. 24, 2012 and the store is waiving its restocking fee on everything except special orders.

For the brick-and-mortar crowd, Kohl’s, Macy’s and Target have all announced that they’ll be opening their doors at midnight on Black Friday, giving consumers something to do post-Thanksgiving dinner.

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