Epicka via Amazon offers its Epicka Universal USB Travel Power Adapter for $18.99. Coupon code "RFMSEDKI" cuts that price to $12.99. With free shipping via Prime, that's tied with last week's mention and the lowest price we could find by $9. It accepts US/EU/AU/UK plugs, works in over 150 countries, and includes four USB charging ports. Deal ends August 19.