EXERCISE: 20 minutes of vigorous exercise can warm you up and keep you warm well after the exercise session. Do a couple sets of jumping jacks, or just run in place to get your blood flowing - moving around produces body heat! The more active you are, the better your blood circulation will be. This means that warm blood gets to your fingers and toes, keeping them warm.
DRINK WARM BEVERAGES: Warm beverages will raise your core temperature. The process can be very relaxing and even stimulating. Make a cup of tea or coffee. Sip on some warm broth. Treat yourself to a hot toddy.
WARM UP WITH A HOT SHOWER: Take a hot shower or bath and use oil or lotion on your skin when you get out. It's almost like putting on another thin layer of clothing.
KEEP YOUR HEAD COVERED: Wear a cap or head covering of some sort even when indoors. A lot of body heat is lost through the scalp, especially if you have short or close-clipped hair. The head covering will help retain body heat and keep your core temperature up.
BAKE COOKIES OR A PIE: Your oven will help to dry the air and heat the kitchen. The kitchen will be warm while you are cooking, and then you can have a great home cooked meal too! However, limit cooking that gives off steam, as this will increase the humidity in the air and make your house damp.
TURN ON SOME INCANDESCENT LIGHTS: The average incandescent light bulb releases up to 95% of its energy as heat rather than light, making it an extremely efficient heat source. Compact fluorescent and LED lights are not helpful in warming your room, so save them for warmer days and use the money you saved to pay the heat bill.
Just follow a few of these tips and you will find yourself in fighting shape to deal with the cold weather. BRING IT ON!