7. Your children spend abnormal time in their "blanket nests."
6. You dress your babies in snowsuits...inside.
5. You overhear your children playing "Ice Age"
4. You change your coffee from a mug to an insulated tumbler.
3. Your science experiments involve finding "Things That Keep Us Warm"
2. You take up baking with the incentive of turning on the oven.
1. You stop putting the babies teethers in the refrigerator.