In this experiment, 4 selling points were added at the top of the homepage. Clicking on them would launch a modal with more details.

In this experiment, the plus and minus quantity icons near the add to cart button were made more visible. In the variation they gained a higher contrast from a full background color. Impact on add to cart and sales was measured.

In this experiment, a floating "Place order" button was added to a mobile shopping cart screen. Impact on progression (to checkout) and sales was measured.

In this experiment, the variation added popular categories with links at the top of the homepage. This was done for all sets of user segments: new and returning. Impact on transactions was measured.

In this experiment, a preset coupon code with -15% amount and an easy to "apply" button was shown to new users who have never made a purchase. In the variation, the an empty coupon field was shown. Impact and transactions and revenue was measured.

Instead of only displaying sort and filters at the top of a listing page, the variation always had them visible with a sticky/floating interaction. Impact on sales was measured.

In this experiment, some side column filters were made more visible by being automatically expanded. These included: brand, price and country of manufacturing.

In this experiment, a simple product category link was added on product detail pages. These links linked to listing pages with more of a similar product type. Impact on sales was measured.

In this site wide experiment, logged out customers were directed to sign in with the help of a top navigation callout. The experiment was triggered for anyone who saw the callout message. After signing in, the user would 1) remain on the same screen they were on and 2) the top header slightly changed to show a logged in state (with their orders, favorites and active username). Impact on successful logins and overall purchases was measured.

In this experiment, a feint gray background search bar was replaced with a higher contrast one containing a blue border and a filled blue color button style.  Impact on searches and purchases was measured. (Inverted to fit the Filled-vs-ghost button pattern).

In this experiment, popular products were shown at the top of the homepage. Impact to sale was measured.

In this experiment, the variation transformed an add-to-cart button into a shopping cart one (making it a two step process). The control had an interaction where an add-to-cart button would become a quantity selection and then a shopping cart action (a three step process). In a way, the control kept users in a "dead-end" quantity selection middle state that required clicking the back button to continue the sale. Whereas the variation automatically moved users into the next step (closer towards being able to make a purchase). Impact on sales was measured. 

In this experiment, recently purchased products were appended at the top of the homepage. The test ran for loggedin users only. Impact on add-to-cart, sales and revenue was measured.

In this experiment, customer reviews were shown on product detail pages. Impact on adds to cart and sales was measured.

Are more (popular) product results better than none at all? In this experiment, popular products were shown during an empty search result. Impact on sales was measured.

In this experiment, popular product category links were added near the bottom of the homepage of an online grocery store - Metro. Impact on completed sales was measured.

In this experiment, popular categories were added at the bottom of a long ecommerce homepage. Impact on total sales was measured.

In this experiment, the interaction on a product page was changed. In the control (A), after clicking "add to cart", the customer would remain on the product page with an updated basket and the button changing to "Go To Cart". The variation (B) however took customers forward automatically to the cart.

In this experiment, reviews on product pages were exposed completely. Instead of hiding them under a clickable tab, they were shown by default in the variation. Impact on sales was measured.

In this experiment, popular search terms were added at the bottom of a long e-commerce homepage. Hence, the variation showed additional search triggers that lead to results pages. (Translated from Russian using Google Translate)