Gracia turns to supplier Lumber Liquidators for most of his flooring needs. Lisbon Cork tiles are among his favorites because the insulating material is both warm and resilient. It's also harvested without harming the tree, making it environmentally sustainable. Lumber Liquidators' prefinished cork comes in four colors and as glue-down 6-inch tiles or 12-inch-by-24-inch floating floor planks. Lumber Liquidators, 800.366.4204; www.lumberliquidators.com.