Participating Wendy's locations offer a Frosty Jr. Coupon Book for $1. That's tied with last year's mention and the best such offer we've seen from Wendy's since February, when we saw $1 for unlimited Frosty Jr.s with any purchase. (The coupon book contains five coupons.) Redeem these coupons for a free Jr. Frosty treat. Ninety cents of every $1 coupon booklet will benefit the Dave Thomas Foundation for Adoption. Click here to find a Wendy's near you. Deal ends October 31.