Fred, isn't it "Eric" instead of "Eic"? Sorry, had to do it!
Edit; OK, I swear to god there was a post from Fred that would've made my post make sense!
For me it's perched on my fore head for the one's that will stay like that or on top of my head but some, like the Gascan don't do either very well so I always have the case handy for them. BTW, for those of you that do keep them in a case, do you put them inside the bag inside the case or, like me, just wad up the bag in the case with the glasses?