Staples offers the Philips Sonicare PowerUp Battery Toothbrush in Blue or Orange, model no. HX3631/02, for $11.99. Plus, Staples Rewards members qualify for free shipping. (Not a member? It's free to sign up.) Although we saw it for $2 less in August, that's the lowest price we could find by $2 today. It features a 2-minute timer, rubber grip, and runs on two AA batteries (included.) Deal ends December 20.