That's a terrible idea, and here's why. The whole process is called retargeting, and if the vendors don't realize you already bought it, then they just keep showing you the same thing, then your brain can ignore it. If they show you something different, then you might be tempted to spend more $$.

2/2

Source: www.cdc.gov/nchs/pressro...

Source: pubmed.ncbi.nlm.nih.gov/15556735/#:~...).