I don't know if I have a good answer for this specifically, but as a consumer, I have a little rant. You know, Amazon must A/B test the shit out of their homepage... but if I buy a shower curtain, my Amazon home page is nothing but shower curtains for weeks. How many shower curtains do they think I need?
This works with other once-in-a-blue-moon items, too: plungers, watches, windshield wipers, phone cases.
What they should do is say "Hey, this guy bought a shower curtain, which means A) he has a bathroom, and B) either moved in or is redecorating... and that means he probably wants a bath mat, a toothbrush holder, a plunger, a towel rack..."
But nope... shower curtains for days. And you know that somehow this works out great for Amazon, or else they'd change it.
What they should do is say "Hey, this guy bought a shower curtain, which means A) he has a bathroom, and B) either moved in or is redecorating... and that means he probably wants a bath mat, a toothbrush holder, a plunger, a towel rack..."
But nope... shower curtains for days. And you know that somehow this works out great for Amazon, or else they'd change it.