"During cold season, my trusty pack of Zicam Rapidmelts ($10) is never far from hand. This cold medicine comes in the form of tablets that melt in your mouth. Each one is packed full of zinc, which has been shown to reduce the duration and severity of a cold if taken early on. As soon as I feel a cold coming on (scratchy throat, pounding head, stuffed-up nose), I start taking Zicam every four hours. It's my first and best line of defence during cold season." — MR