Create short links to learn more - Give customers an easy way to learn more, either through reviews or specific frequently asked questions.
Easily select product attributes - Make selecting the type of product they want to purchase easy.
Provide shipping information - Shipping costs is the primary reason for shopping cart abandonment. Displaying shipping costs up front, and better yet giving clear ways to achieve free shipping, removes this reason for cart abandonment.
Offer more than one shipping method - Speed options such as next day delivery as well as location (such as click and collect strategies).
Target does an excellent job addressing multiple buyer types at once.
Buy Area Design Best Practice 1: Provide free shipping
Unexpected shipping costs are the primary reason for cart abandonment.
Target incorporates the free shipping benefit into their value pricing strategy. They know customers value free shipping, so they use it as an incentive to get customers to increasing eCommerce average order value.
Buy Area Design Best Practice 2: Quick links to learn more
Target does a great job providing quick links to jump to other parts of the page. At the top they give two options.
The first is to see reviews in detail.
The second jumps to a Q&A section. One interesting tactic they use is organizing the FAQ questions by popularity. Those that are asked most frequently get pulled to the top.
I particularly like that Target allows customers to answer and provide feedback on the items. They dynamically insert a label "Target Team Member" when they themselves provide clarification to the FAQ.