Here's a good way to clean your drains - as a preventative measure, or if they're clogged. We tried it last night and it really works!!
1/2 cup baking soda
1-2 cups cheap household vinegar
Pour the baking soda down the drain, followed by the vinegar. Put a plug in the drain and fill the sink with water. Wait a few minutes, then pull the plug and let the water push everything down the drain, cleaning as it goes. Awesome! -Heloise
(more on the magic of vinegar later)