"If I bought a pen a day ago it is unlikely I am interested in pens for next few weeks"

And yet whenever I buy anything online I'm inundated with ads for said item. In fact I almost wish there were an officially sanctioned/ standardised way of updating your status as a tracked user on various products you might be interested in or have in fact now purchased with no need to buy another soon. As it is I still see ads for baby formula on YouTube despite having had no need to purchase it for over 16 years (and I honestly would expect Google should know that about me, though when I ask Google Assist how old my children are it refuses to tell me...)