My limited experience with &quot;targeted&quot; ads comes from Amazon as they have access to my extensive purchase history. However, they are completely useless to me. I&#x27;m not sure why the system tries to advertise the same product (or type of product) that I just purchased. This is the extent of the ads.<p>I would actually like to receive more relevant ads. &quot;Hey, we saw that you recently purchased a trash can, check out these garbage bags.&quot; There are so many supportive or related products that would be relevant to things I&#x27;ve bought. It&#x27;s a no-brainer. Yes, I know there are &quot;related&quot; and &quot;customers who bought this...&quot; on each product page. I&#x27;m talking about after the fact in the days and weeks that follow the purchase.<p>And how about the option to say &quot;No thanks, I&#x27;m not interested in these types of products right now.&quot; or &quot;I already have this.&quot;? Is this really a difficult thing to implement?<p>Maybe I&#x27;m missing something.