Yaktrax Walkers at Sports Authority. I was able to walk 7.5 miles without as much as a slip, to say nothing of falling.
You slip them over your running shoes, the way we used to slip chains over tires before front wheel drive became popular.
Will they work in a run? I'll find out soon, although I doubt there'll be much ice today. But that's not the reason for this post.
Many of us manage to hurt ourselves this time of year, just in the simple act of walking to our car during a snow or ice storm. Since these are pretty cheap and easy to use, I'd recommend these for old farts like me, not just athletes.