Hosting Thanksgiving dinner doesn't have to be expensive. Sticking with traditional dishes (potatoes and carrots are cheap!) and flavoring up an inexpensive turkey are just two easy tricks that keep costs down. "It's the bells and whistles that are expensive in a Thanksgiving dinner," says Melissa d'Arabian, host of the Food Network's Ten Dollar Dinners. So make big batches of classic sides like mashed potatoes. (Note: The 10-lb. bag of potatoes at the supermarket is usually cheaper than buying several loose spuds.) Other ideas? Brine your on-sale turkey to make it taste more expensive and eschew any meat-based sides.