Mason jars are cute for about 1/2 ounce. If you get bigger nugs, it's hard to fit them in the mouth of them. They do sell quart ones that have about a 4" lip on them which is nice. Wal-Mart had some that were one GALLON mason jars for $9 each. Picked up a dozen while I could.
Just make sure you open the jars and let them air out once every week or two. That's all you need to do to cure the weed, it'll get more crystalized and smoother tasting the more its in the jar till its about 6 months old. Good to keep for a year or two if you actually keep weed that long.