Kimyer via Amazon offers its Kimyer Universal USB Travel Power Adapter for $19.99. Coupon code "II6PG85S" cuts it to $13.99. With free shipping for Prime members, that's a buck under our mention of a similar item from two weeks ago and about $14 under the lowest price we could find for a similar charger today. It accepts US/EU/AU/UK plugs, works in over 150 countries, and includes four USB charging ports. Deal ends May 31.