If you put food down the garbage disposal, you've probably noticed that the sink sometimes smells bad afterwards. Little food pieces get stuck in the sink and start to rot, creating a smell you really don't want to associate with the room where you cook and eat. Slice a lemon and toss it into the garbage disposal, then run it. The acid from the lemon will neutralize the smell, digesting the lemon will help push the old food further down the drain, and the fruit will fill your kitchen will a lemony-fresh scent.
