The very first Black Friday ad fliers — from Costco, JC Penney, and Kohl’s — have been leaked to the website Here’s a sneak peek.

The jury’s out on what the holiday economic forecast will look like, but the first three Black Friday ads show retailers are working hard to get your business by opening earlier than ever before and offering deep discounts.

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*Discounted electronics will be the story at Costco, where portable GPS devices will be $30 to $55 off, a high-definition camcorder will be $70 off, and a 17-inch laptop computer can be had for $699. See the Costco ad here.

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*JC Penney has a 72-page Black Friday ad, with 47 pages of doorbusters for all those early bird shoppers. A limited number of early shoppers will get a free Disney snow globe. See the JC Penney ad here.

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*Kohl’s is offering $15 for every $50 you spend from midnight on Thanksgiving until Sunday, Nov. 27, plus 50 percent off all toys and deals like $99.99 diamond solitaire earrings. See the Black Friday ad here.