1. Have a cozy, crackling fire (or not). If you have a gas fireplace or new clean-burning woodstove, go ahead and light a fire to welcome visitors. But if your home’s wood-burning fireplace is older and leaves a smoky smell in the room, hold off. Those with allergies or smoke sensitivities can be turned off — or literally turned away when they have to go outside. No fire? Consider offering warm apple cider instead.