Your kitchen sink sees a lot of use in a week, from grimy pots and pans to leftover soil from your freshly watered houseplant. And as much as we wish it were different, it doesn't always smell like roses in your dish disposer. The natural buildup of old food and grime can linger in your kitchen sink and drain and drift to the rest of your home if not cleaned properly or often enough. So show your kitchen sink and drain some love, and clean them regularly with our how-to instructions. Then add your kitchen drain and sink to your weekly cleaning routine to make it a habit.