OverSpeed via Amazon offers the QQCute Countertop Water Flosser for $39.99. Coupon code "MIIVAG48" cuts it to $29.99. With free shipping, that's tied with our mention from three weeks ago, $10 off, and the lowest price we could find. It features a 20-oz. reservoir, seven multi-functional tips, and adjustable pressure from 30 to 120 PSI. Deal ends March 31.

Update: The price has dropped to $37.99 before coupon, $28.49 after.