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If you're a keen online shopper, especially for tech items, there are a few guidelines you should know to make your experience better and possibly save yourself more cash. Retailer price-matching policies are one of them.

Price-matching policies are especially important as stores compete for our purchases of the same products, and become even more important if you're scouting a popular product, shopping during a busy period like Black Friday, or hunting for a specific color, size, or model.

Also: I'm a shopping editor, and this is the No. 1 reason I prefer Best Buy over Amazon for tech purchases