Back in 2003, Amazon.com had a feature which was called “The Page You Made”. This page would automatically collect every item that you clicked on during a session on the site, and automatically add it to list which it would present to you. It's rather similar to the current feature, Your browsing history, except the latter doesn't seem to expire items. It would also show recommendations.

We want to make it easy for you to find what you're looking for at Amazon.com. The Page You Made and Your Recent History are meant to help you keep track of some of the items you've recently viewed and help you find related items that might be of interest. As you browse through the store, we will bring to your attention items similar to those you are looking at. Since your browsing habits change frequently, Your Recent History changes as well. Your sessions expire after a few days and are not stored on the Amazon.com site. This way we can offer you the most relevant purchase suggestions for your recent shopping sessions on the Page You Made. We also give you the ability to alter Your Recent History, by removing recently viewed products or clearing all items. To add pages to Your Recent History, just visit new items that interest you.

There is no punchline or upshot to this; just recording the existence of such a thing. 20 years later, traces of it on the internet are nearly entirely gone.