I don't give any information to anyone, I don't sign up for any of those stupid discount cards where they track your purchases, etc. They don't have to know and if they want to know, they don't get any info. I have a spam e-mail address that I use, it even says "spam" in it, that's all they get. If I have to run over to it to "verify" the address, I will, empty the trash while I'm there and never see anything else they have to send.