BetterBasics via Amazon offers the Brewberry 1.7-Liter Cordless Electric Glass Kettle for $29.99. Coupon code "KTTLEKG3" cuts that to $23.99. With free shipping, that's the lowest price we could find by $10, although we saw it for $4 less last month. This 1,500-watt kettle boils water in about three minutes and features borosilicate glass, a removable filter, detachable base, and auto-shutoff. Deal ends March 15.