Amazon ended its charity donation program, AmazonSmile, after a series of other cost-cutting measures. Many shoppers expressed disapproval on social media and have been searching for alternatives.

An Amazon promotion that tipped delivery drivers $5 for every customer that sent a "thank you" message maxed out on the second day, raising questions about whether drivers deserve tips year-round.

Online pricing algorithms can game the system and ultimately end up costing the consumer more. And the impact of these program can go beyond just a few extra dollars at checkout.

More retailers are striking deals with delivery companies like Uber, DoorDash and Instacart to get online orders to shoppers within hours.

Despite the pandemic recession, holiday sales are expected to set a new record, topping $755 billion.

Walmart+ will cost $98 a year, offering free delivery of groceries and items from nearby stores, a discount on gasoline and mobile checkout.