Just made a chicken in the crock pot yesterday--YUM! With veggies!
I then took the carcass and miscellaneous and put in back in the crock pot and covered it with water and let it stew from 5pm until 630am.
I strained everything and put the bones in a ziploc and put in the freezer. The stock I am not sure what to do with . Do I freeze it in ziplocs as well? right now it's in my frig.....
BTW---gave my pups some of the meat last night with some of the stock...my Aussie ate his dinner so fast he threw it up later. I think he had it gone in 3 bites. 
Hehe you don't need to save the bones after you've made the stock, just throw them out. The stock you should portion up and freeze. Remember it'll expand a bit as it freezes so don't completely fill any of your containers.
The only reason I or anyone else was freezing the bones was to save them all until we had enough bones to make stock with.