These retailers are beefing up their stores to survive a new era of shopping - and it's paying off

Target has been investing in its stores, opening smaller locations in urban centers, rolling out new partnerships and private-label brands, and doubling down on e-commerce, an area where it has lagged behind its competitors in the past.

It is also focusing on ways to make it easier for shoppers to load up their carts without worrying about how to get their purchases home.

One new service, which is reserved for Target's urban locations, allows customers to have their purchases shipped home that same day for a flat fee of $7. It's $25 extra for larger furniture pieces.

Another service allows customers to buy products on the app and have them brought out to their car by a team member.

Walmart is taking its competition very seriously. In the past year, Walmart has launched or tested several new technologies to keep up in its race against Amazon.

It's expanding its grocery-delivery service nationwide, developing a technology that can predict the shelf life of products, and is reportedly in the process of creating a store with no cashiers, similar to Amazon Go. Walmart has built pickup areas in 1,800 of its stores, with plans to expand it further in the near future.

Kohl's is fending off the threat of Amazon by embracing it into its own business. In 2017, it partnered with Amazon to bring sales kiosks into its stores, and it started offering in-store returns for items ordered off its website.

According to research by the firm Gordon Haskett, since the partnership began in October 2017, total visits to Kohl's stores with Amazon's return program outperformed nearby stores without the program by about 8.5%. Moreover, these stores also drew in a higher proportion of new customers.