Head over to AmazonLocal to score a free voucher good for $10 off any $20+ purchase at Rite Aid's online store! There are currently quite a few B1G1 free and B1G1 50% off sales on the site right now for makeup, medicine and more. You'll be able to use the voucher immediately after purchase, but you have plenty of time to use it because it doesn't expire until 12/11/12.
You should be able to find this free deal in your city, but if not, it is under National Deals. Feel free to browse all the other national and local deals...there are lots of great ones!
Click here for more info.