So, every roof on the property is now metal. Our house roof is the raised metal-tab stuff, and when it gets the least bit wet it's slicker than snot -- to the point where we've already had a family member fall off and injure himself (not badly, but still a good warning).
My New Balance tenny runners don't grip it when it's wet, I can just barely keep traction by sitting down on it in jeans -- and denim usually grips metal roofs pretty well.
So, are there any trick shoes, or shoe attachements, that one can wear to keep from falling and breaking one's neck? Any of them that don't cost an arm and a leg, yet still really work?