Rite Aid is offering free Tums Freshers antacid to their Wellness members. That's what they call their free rewards program and despite my affinity for being a member of clubs, it turns out that I wasn't a member. If you're in the same boat as me, then you can signup here. After you register, you can print out a temporary card that contains your Wellness member number. Use that on the freebie form and you should be set.