CVS Freebie and possibly a coupon

Does CVS have your correct email address?  If not, you might be missing out on some good coupons.  Just about every week, CVS sends me a coupon for $5 off a $20, $25 or $30 purchase good Thursday through Sundays.  If you are not getting these, you should make sure you are signed up with the correct email address.
Well, today I got my $5 off $25 (good only thru Sat this week) and at the bottom was a free giveaway offer on facebook or twitter.  When I went and liked them on facebook, it gave me this link to sign up for a free toothbrush or bioluxe trial size. YAY!  Offer ends 11/24, so hurry.  It says to check my inbox, so make sure you check your spam folder if you don't have them saved.