Anyone want to see if the Costco diapers are really good without having to buy a whole box? You can get a free sample (and choose what size you get) by visiting their free diaper offer. I plan to put it to the most rigorous test: overnight. Then I'll know how well this diaper works

They say on the form that they will be keeping your email so that Costco can communicate with you about special offers and the like. I would suggest you use a junk email account if you are worried about getting too much advertising in your email. I have a particular account that I don't mind using. And, then I just delete advertising emails from that inbox like crazy.