Retailers have been creative about membership offers and benefits over the past years. While Amazon Prime's, Costco's and Best Buy's programs are some of the best-known memberships, Walmart Plus is ...

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Amazon recently announced a new money-saving perk for Prime members — a discount on gas. Members can now save 10 cents per gallon at bp, Amoco and ampm gas stations across the U.S. Amazon’s new perk ...