This Oral-B ProfessionalCare 1000 Electric Toothbrush drops from $79.99 to $39.97 and comes with a free $10 gift card at Walmart.com. Even better, use this $15 mail-in rebate to drop the total net price to $24.97. With shipping adding $4.97, this is the best deal we could find for this toothbrush by $15. It has 1 cleaning mode with a two-minute timer on 30-second intervals, a waterproof ergonomic handle and comes with a charging base and 1 precision clean refill brush head. It's also received an average rating of 4.4 out of 5 from 1,150 Amazon reviewers. Sales tax is charged in most states.