When pasta night is over, and the tomato sauce is gone, there’s no need to toss that empty jar. Reduce waste at home by reusing empty glass containers. From pickles to peppers, jams to olive jars, ...

If you're the kind of person who tends to think about sustainability in the kitchen, then there's a good chance you're often coming up with ways to use food scraps and reduce food waste as you cook.

Claire is Lifehacker's Senior Food Editor. She has a B.S. in chemistry, a decade of food journalism experience, and a deep love for mayonnaise and MSG. Any collector of condiments, spreads, jams, and ...