Yep. I keep stuff for years too. I threw out a couple of jars of tomato sauce yesterday because they looked really dark in the jar it was in and not the normal color and was a couple of years old. I like to use fresh baking powder as it does lose its power after a while. As a child, we never put things in the refridgerator that they now say should be refridgerated. A little common sense goes a long way.