Dear In the Swim,
Will you PLEASE stop sending your catalogs to this address?
It is a waste of your resources and the Earth's.
I enclose this photo to convince you that I am not interested in purchasing your products.
UPDATE: Like, well, yeah. It's not like a $100 bucket of chlorine tablets will be an impulse purchase.
UPDATE II: This time I sent an e-mail to customer relations rather than calling the desk. A nice gentleman wrote back to tell us that he had removed us from the database.