Mason Jars are all the rage.  Trendy, functional and just plain nicer looking than most containers-here is a tip to make one even more useful.  The top shaker lid from a standard parmesan cheese bottle fits perfectly on a standard mason jar bottom.  Simply wash lid, fill jar with whatever you want to shake out, tighten cap and use!  Recommendations: Parmesan Cheese, Spices, or even Baking soda for household use.