GFCI reset buttons

I'm coming out of lurkdom as this GFCI-thing touched a button! In our old apartment, the upstairs bath and a bedroom light were not working after a power outage. When almost to the point of calling an electrician, we discovered a "reset" button in the basement near the breaker box! (there was not a gfci outlet in the bathroom). Who would have thought!! Also, just as a comment - if your power goes out be sure to check the reset buttons in the basement or garage which give power to your freezers or extra fridges! A neighbor's house was struck by lightning last year. They reset all the buttons in the house, but forgot about the garage and lost an entire freezer of food! Kim