Sign up to receive your free sample here.
When you sign up for free stuff (which I do often, if only for the joy of getting a little "surprise" package in the mail at least once or twice a week) -- be sure not to use your main / standard email address, but a sort of "default" email into which you allow all that commercial spam. I use gmail for mine, because otherwise, use MobileMe for all my mailing.
I check that gmail account sporadically, sometimes several times in a week, or every few weeks. But learned to do so more regularly around my birthday last month. I discovered lots of coupons and certificates sent to me for freebies for my birthday.