I swear by Airborne even though this just was recently in the news.
Gotta start it quick though in order for it to be most effective.
I must concede.
I used Airborne (as you suggest above) for the first time this winter. Whether it's coincidence or not, I've not gotten a cold once, though I have been taking better care of myself in general this cold season.
I was skeptical for years because I'd heard about the "miracles" of Zicam, which never did it for me. Perhaps it's individualistic - some people resopnd differently to each OTC remedy.
Either way, it certainly wouldn't hurt to try them if you're going to be sick anyway.