In no particular order, try:

• A brisk walk in the outdoors, maybe after dark in the snow on a clear night, or early morning. Look up.
• The smell of baking sugar cookies
• Peeling clementines.
• Broken concolor fir needles held close to the nose and examined
• Blowing out a beeswax candle and watching the smoke
• The sound of wood crackling on the nearest available hearth. Perhaps a woodstove.
• A string of Christmas lights, or that one specific kind of reindeer decorations
• A handwritten note to a loved one
• Chocolate covered almonds with coconut flakes and sea salt. Or chex mix baked in the oven
• Raw snicklerdoodle dough rolled in sugar and cinnamon
• Three big spoonfuls of honey, two cups of water, the juice from three lemons, and three shots of brandy in a saucepan until hot. Makes two full mugs.