Here’s how you can save 50¢ per gallon on gas this July 4 weekend

Amazon Prime members are getting one of the best July 4 gas deals around.

[Photo: Getty Images]

If you’re one of the tens of millions of Americans taking to the road this July 4 holiday weekend, you’ll likely have this nagging thought cross your mind at least once: how much will it cost me to fuel up the........

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