This Post May Contain Affiliate Links. Please See Our Disclosure Policy Here. Free Reach Toothbrushes @ Walgreens SharePin Walgreens has the Prevent toothbrushes on sale for $0.99 this week. There is a HOT new $2/1 Reach Toothbrushes coupon available that will make for Free Toothbrushes. You should also be able to find these at other stores for around $1.