Working outside during our cold New England winters is bad enough, but after my husband fell on a patch of ice early this winter, I decided to buy him Yak Trax Pro's to help prevent the possibility of future tumbles. These rubber and steel contraptions stretch right over any pair of shoes or boots, and conform to the shape of the footwear they're paired with. The steel coils provide traction and stability on snow or even ice, without adding heaviness or bulk. Since they are easily removed without having to remove one's shoes, my husband can slide them off quickly and conveniently if he's going to be indoors for a bit.
I was a bit worried about the sizing, since my husband wears a size 13 and his winter boots are huge and bulky, but the XL fits great. These are a definite must-have for anyone who spends lots of time outside during the winter months.