My housemate and (now ex) girlfriend gave me one of those chain saws many tears ago, and they really work a treat.
A lot less work than chopping and not all that heavy and very compact. Not that that stops me from chopping, that often but I do use the saw on the 5-6" and larger logs, when I find them.
Mine came in a little round tobacco style tin which fits both the saw and the little hooks that the handles attach to. I keep it wrapped in an oily rag in the tin. You can easily slip the tin it in a pocket, at the bottom of a nalgene bottle pouch etc. Mine has the orange plastic handles, but some come with web straps.
I'm thinking next time I go out I'll probably just put some 4-5" paracord loops on the end and carve a couple of wood handles should I want a handle.
Highly recommended.