Amazon.com has Philips Sonicare 2 Series Plaque Control Electric Rechargeable Toothbrush (HX6211, Black) on sale for $29 – Extra $5 off coupon found on product page = $24. Shipping is free or get 2-day free shipping with Prime.
Not as slick as the $20 deal a month ago, but still good for anyone who might have missed it