Gear Review: YaxTrax
I have to do a shameless, unsolicited plug for these babies. They fold up to fit in your pocket when you don't need them and offer peace of mind when traversing sketchy snow slopes on the way to your favorite exit point! They are also cheap as fuck (like $30). They won't prevent you from post-holing and they aren't guaranteed to get you laid by chicks predisposed to mountaineering types, but they DO keep you from slip sliding away!
http://www.yaktrax.com/