Yasi Direct via Amazon offers its Yasi Sonic Rechargeable Electric Toothbrush in Black or White for $21.65. Coupon code "HVCP9JQW" cuts that to $12.99. Plus, Prime members receive free shipping. That's $3 under our January mention and the lowest price we've seen. (It's the best today by $7.) It comes with a rechargeable battery, three brush heads, and tongue cleaner. Deal ends April 30.