Re:If you're using a cane or crutches in winter...
Absolutely! I have those for my boots, too. I've just been screwed with the crutches up until now...and cannot for the life of me figure out why doctors don't tell their patients about these tips. It's heart-stopping when you're relying on something to compensate for a limb you can't use and it slides out from under you. Your options get really few, really fast.