Earn a $6.00 Register Reward at Walgreens this week for buying four Crest or Oral-B items. Buy two tubes of Crest toothpaste and two packages of Oral-B floss. Use four $1.00 newspaper coupons. After checkout, submit for a $0.10 any brand toothpaste rebate through MobiSave. Get all four items for just $0.47 each!