Step 1: Water
You can also store water by filling your bathtub before the storm hits. This water can be used as emergency drinking water, or for flushing the toilet. If it is raining out, you can collect water from your downspout. I have found the easiest way is by placing a garbage bag under the spout and using a clothespin to hold it in place. When the bag gets full, pour it into your bathtub. This water is best used for flushing the toilet, unless you purify it before drinking.
Step 2: Food
When the power goes out, consume meat and dairy items first. Also try to limit the amount of time you have the fridge doors open.
Always keep frozen jugs of water in your freezer, so you can place them into your fridge to keep everything cool.
Have a way to boil water for making food and hot drinks. A simple camp stove is all you need, but do any cooking in a well ventilated area.