The Philips Sonicare 1100 Electric Toothbrush is down to $15 today, which is Amazon’s lowest-ever price. You’d pay $5 more at Best Buy and even more at local stores like Walgreens. Shipping is free for Prime members, too. It includes a C1 Simply Clean brush head, a built-in timer to help track 2-minute brushing sessions, and a rechargeable battery rated for up to 14 days of use per charge. Buy Now at Amazon