The Big Girl chooses to pester me with her pleas to get her ear pierced just before school, just before bed, or when I'm rifling in the refrigerator with a wolfish look.
Beware that, like most convenience foods, these are more expensive than home-cooked stuff, and most likely not as healthy. But you can find some fairly healthy foods there too.
Generally, food in the refrigerator is safe as long as the power is out no more than a few hours and the temperature in the refrigerator remains at 40 degrees farenheit or below.