The FreezeUp Freezer Bin is a great space saving organizer. It's adjustable slots make it easy to fit things into the bin and the handles on each side make it easy to slide in and out of the freezer. It is most ideal for smaller packages that would otherwise be stacked up and harder to find in the depths of your freezer. It would also make a great organizer for a cabinet or fridge if there was something else that would fit. I personally think it would be great to organize those individual tuna packets. Right now it's in my freezer keeping some smaller thing organized and out of the way and so far I love it.