As one of its daily deals, Best Buy via eBay offers the Philips Sonicare HealthyWhite+ Electric Toothbrush, model no. HX8911/35, for $89.99 with free shipping. That's the lowest total price we could find by $25. It features a Philips Sonicare whitening pen, Philips Sonicare BreathRx toothpaste, up to 31,000 brush strokes per minute, dynamic fluid action, Clean and White mode, and three intensity settings. Deal ends today.