From Freebies 4 Mom:
Yes, you can get a great treat for under $1! Introducing "Waffle Cone Wednesday" at TCBY, a summer promotion where you can get a waffle cone filled with frozen yogurt for just 99 cents. This treat would normally cost over $3, so just be sure to ask for it on a Wednesday and get it for the change in your pocket. This is a nationwide promotion, but as always please call your local store to confirm that they are participating.