Updated (thanks to reader Matthewsmom)! This Philips Sonicare Rechargeable Sonic Toothbrush lowers from $74.99 to $39.99 with free shipping at Walgreens.com. At checkout enter code SONIC10, which cuts it to $29.99. This $10 Mail-in Rebate drops it to $19.99, the lowest price we've ever seen for this toothbrush. Note that it is available only for pre-order, so it wont ship until 12/6 (and you won't be charged until then). It has a near-perfect rating from 22 reviews. Sales tax is charged in most states.