I stopped long ago. That was before they allowed other sellers to use them; and before they sold anything other than books.
I was only able to change info. That is probably the same today. Just change your address to something fictitious. Then change your email to something fictitious as well. They may require a valid email address; so you could change it to one of those temporary emails that only last a few hours. Check out this site. Might be a good one to save too. This service is the most popular.
http://www.mailinator.com/