For Prime members only, Amazon offers the Vicks DayQuil / NyQuil Severe Cold and Flu Combo Pack (two 12-oz. bottles) for $13.97. Clip the $3 off coupon on the product page to drop the price to $10.97. With free shipping, that's tied with our mention from three weeks ago, the lowest price we've seen, and $3 under what you'd pay in retail stores.