I'd limit refrigeration to 5 days.
I freeze stock in 1 quart freezer Ziplocks. It's easier if you stand the bag up in a bowl or small pan so it will stay open and upright while you fill it. Put in exactly 4 cups of stock then seal it squeezing out as much air as possible. Lay the bags flat on a cookie sheet and freeze them, then you can stack them in the freezer easily and they'll stay where you put them.
"If you want to make an apple pie from scratch, you must first create the universe." -Carl Sagan