No, Christmas lights won’t slow your Wi-Fi — but these gadgets will

A silly story about Christmas lights slowing Wi-Fi to a crawl went viral, and though holiday decorations aren't likely to cripple your signal, a few common household gadgets very well could.
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San Francisco journalist Bill Snyder writes frequently about business and technology. His work appears regularly in CIO.com and the publications of Stanford's Graduate School of Business and the Haas School of Business at the University of California at Berkeley. He welcomes your comments and suggestions.