Amazon offers the Oral-B Vitality Floss Action Rechargeable Electric Toothbrush for $19.96. Clip the $5 off coupon on the product page to cut it to $14.96. Pus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.48.) That's $5 under last month's mention and the best deal today, also by $5. It features MicroPulse bristles, a 2-minute timer, rechargeable battery, and two replacement brush heads.