Put a "customers also bought" row on the product page

When to use it

When the product page ends at the add-to-cart button and the average order is roughly one item.

How to run it

1. 1Add a "customers also bought" row below add-to-cart, filled from real co-purchase data, not a hand-picked list.
2. 2Put the same row in the cart, where the visitor has already committed and an accessory is a smaller decision.

Why it works

Raise the perceived value of acting

A relevant recommendation shows the item the visitor would otherwise have to go looking for. McKinsey's widely cited analysis of Amazon attributed roughly 35% of its purchases to recommendations.

Source: McKinsey analysis of Amazon recommendations