Starting 11-09, Walgreens will have Crest Pro Health Mouthwash 500 ml, Oral B Cross Action Toothbrush and Pro health Toothpaste 6oz on sale three for $9. You will receive $4 in ECB when you buy three. Buy Three Mouthwash for $9 and use one of the $2 off coupons below and one of the $1 off. Pay $6 and get back $4 in Register Rewards. Final price three for $2 or $.67 each.