Some thoughts:

1. A case of baby wipes. Sometimes showering isn't an option but these will help keep you clean.

2. Headlamps for everyone in the household over the age of four.

3. Entertainment such as dice, boardgames, puzzles, cards, dominos, etc...

4. Blankets. Snuggling up under one feels great, plus you can hang them to seal off areas to minimize wasted heat.

5. Several small radios placed in different rooms.

6. Tom Brown, Jr's book on urban survival

7. Snow shovels and a safety harness for clearing off your roof.

8. CO detectors and fire extinguishers.

9. A metal bucket in which you can place fire-heated rocks to use as an indoor heat source.

-Blast