I've been trying to be more frugal with my ingredients (aren't we all), so I like to try and freeze chicken bones and giblets/necks that come with whole chickens. The problem is that we recently cleaned out the freezer and i found a LOT of frozen chicken parts in their little individual baggies that had disappeared into the back of the fridge. They never got used since I forgot about them, and all the individual bags meant I didn't really know at a glance if I had enough to make some stock or gravy for freezing.
Here is my question: what is your preferred method for storing these frozen bits for future use? Can I continually add raw, unfrozen foods to a bag with already frozen stuff in it, or do you think I'm asking for food poisoning?