$4 off $20 CVS Coupon

I saw this posted all over the place earlier today and just couldn't get around to it till tonight.  CVS announced a $4 off $20 coupon on Twitter.  At first I thought you had to have a twitter account to get it, but now I see the link takes you directly to a fill in form (need to enter your ECB card number and e-mail.)  I got mine instantly.  The kicker is this expires on Wed the 15th, so use it before you loose it!  What will you be getting at CVS this week?  Candy, vitamins and air fresheners are on my list.