Jars. Better yet? Glass jars with lids! They go great in the dishwasher and last forever. I store them with the lids screwed on so no MIA lid covers. Instead of using plastic disposable tubs or zipper bags, when I have extra anything, I cut the label off the original container, tape it to a jar, date it, and feel very proud of myself for not being wasteful! It really helps when I get the year right on the date too.